A 100kg wooden box is standing on a wooden floor. You push the box with a force of 100N to the...
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Transcript of A 100kg wooden box is standing on a wooden floor. You push the box with a force of 100N to the...
A 100kg wooden box is standing on a wooden floor You push the box with a force of 100N to the right The box does not move Draw a complete free body diagram of the box and label all forces
FW=1000N
FN=1000N
F=100N
FW=1000N
FN=1000N
F=100NFfr=100N
FW=1000N
FN=1000N
F=200N
FW=1000N
FN=1000N
F=200NFfr=200N
FW=1000N
FN=1000N
F=300N
FW=1000N
FN=1000N
F=300NFfr=300N
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr=
Static Friction ƒs
bull Static friction acts to keep the object from moving
bull If F increases so does ƒs
bull If F decreases so does ƒs
bull Static friction has a maximum ƒs micros FN
microshellipcoefficient of static friction
More About Friction
bull Friction is proportional to the normal forcebull The coefficient of friction (micro) depends on the
surfaces in contactbull The direction of the frictional force is opposite the
direction of the applied forcebull The coefficients of friction are nearly independent of
the area of contact
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000N
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000NMaximum Ffr= 420N
FW=1000N
FN=1000N
Which force will make the box accelerate ndash Any force that is larger than 420N
Maximum Ffr= 420N
FW=1000N
FN=1000N
F=500NMaximum Ffr= 420N Fnet= 80N
a=08ms2
1 When a 12-newton horizontal force is applied to a box on a horizontal tabletop the box remains at rest What is the force of static friction acting on the box
2 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 N steel block on a steel table in motion
3 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 kilogram steel block on a steel table in motion
4 Jim wishes to push a 100 N wood crate across a wood floor According to your table Approximate Coefficents of Friction what is the minimum horizontal force that would be required to start the crate moving
5 According to your table Approximate Coefficents of Friction which road surface would offer the greatest traction for the rubber tires of a 1000kg car Which force would be required to make the car accelerate on each surface
a dry concreteb wet concretec dry asphaltd wet asphalt
6 A 100kg wooden box is at rest on a wooden floor How much force is necessary to make the box accelerate
7 A 100kg wooden box is at rest on a wooden floor Your friend is pressing the box straight downwards with a force of 500N How much force is necessary to make the box accelerate
8 A 100kg wooden box is at rest on a wooden floor Your friend is lifting the box straight upwards with a force of 500N How much force is necessary to make the box accelerate
- Slide 1
- Slide 2
- Slide 3
- Slide 4
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Static Friction ƒs
- More About Friction
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
-
FW=1000N
FN=1000N
F=100N
FW=1000N
FN=1000N
F=100NFfr=100N
FW=1000N
FN=1000N
F=200N
FW=1000N
FN=1000N
F=200NFfr=200N
FW=1000N
FN=1000N
F=300N
FW=1000N
FN=1000N
F=300NFfr=300N
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr=
Static Friction ƒs
bull Static friction acts to keep the object from moving
bull If F increases so does ƒs
bull If F decreases so does ƒs
bull Static friction has a maximum ƒs micros FN
microshellipcoefficient of static friction
More About Friction
bull Friction is proportional to the normal forcebull The coefficient of friction (micro) depends on the
surfaces in contactbull The direction of the frictional force is opposite the
direction of the applied forcebull The coefficients of friction are nearly independent of
the area of contact
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000N
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000NMaximum Ffr= 420N
FW=1000N
FN=1000N
Which force will make the box accelerate ndash Any force that is larger than 420N
Maximum Ffr= 420N
FW=1000N
FN=1000N
F=500NMaximum Ffr= 420N Fnet= 80N
a=08ms2
1 When a 12-newton horizontal force is applied to a box on a horizontal tabletop the box remains at rest What is the force of static friction acting on the box
2 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 N steel block on a steel table in motion
3 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 kilogram steel block on a steel table in motion
4 Jim wishes to push a 100 N wood crate across a wood floor According to your table Approximate Coefficents of Friction what is the minimum horizontal force that would be required to start the crate moving
5 According to your table Approximate Coefficents of Friction which road surface would offer the greatest traction for the rubber tires of a 1000kg car Which force would be required to make the car accelerate on each surface
a dry concreteb wet concretec dry asphaltd wet asphalt
6 A 100kg wooden box is at rest on a wooden floor How much force is necessary to make the box accelerate
7 A 100kg wooden box is at rest on a wooden floor Your friend is pressing the box straight downwards with a force of 500N How much force is necessary to make the box accelerate
8 A 100kg wooden box is at rest on a wooden floor Your friend is lifting the box straight upwards with a force of 500N How much force is necessary to make the box accelerate
- Slide 1
- Slide 2
- Slide 3
- Slide 4
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Static Friction ƒs
- More About Friction
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
-
FW=1000N
FN=1000N
F=100NFfr=100N
FW=1000N
FN=1000N
F=200N
FW=1000N
FN=1000N
F=200NFfr=200N
FW=1000N
FN=1000N
F=300N
FW=1000N
FN=1000N
F=300NFfr=300N
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr=
Static Friction ƒs
bull Static friction acts to keep the object from moving
bull If F increases so does ƒs
bull If F decreases so does ƒs
bull Static friction has a maximum ƒs micros FN
microshellipcoefficient of static friction
More About Friction
bull Friction is proportional to the normal forcebull The coefficient of friction (micro) depends on the
surfaces in contactbull The direction of the frictional force is opposite the
direction of the applied forcebull The coefficients of friction are nearly independent of
the area of contact
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000N
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000NMaximum Ffr= 420N
FW=1000N
FN=1000N
Which force will make the box accelerate ndash Any force that is larger than 420N
Maximum Ffr= 420N
FW=1000N
FN=1000N
F=500NMaximum Ffr= 420N Fnet= 80N
a=08ms2
1 When a 12-newton horizontal force is applied to a box on a horizontal tabletop the box remains at rest What is the force of static friction acting on the box
2 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 N steel block on a steel table in motion
3 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 kilogram steel block on a steel table in motion
4 Jim wishes to push a 100 N wood crate across a wood floor According to your table Approximate Coefficents of Friction what is the minimum horizontal force that would be required to start the crate moving
5 According to your table Approximate Coefficents of Friction which road surface would offer the greatest traction for the rubber tires of a 1000kg car Which force would be required to make the car accelerate on each surface
a dry concreteb wet concretec dry asphaltd wet asphalt
6 A 100kg wooden box is at rest on a wooden floor How much force is necessary to make the box accelerate
7 A 100kg wooden box is at rest on a wooden floor Your friend is pressing the box straight downwards with a force of 500N How much force is necessary to make the box accelerate
8 A 100kg wooden box is at rest on a wooden floor Your friend is lifting the box straight upwards with a force of 500N How much force is necessary to make the box accelerate
- Slide 1
- Slide 2
- Slide 3
- Slide 4
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Static Friction ƒs
- More About Friction
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
-
FW=1000N
FN=1000N
F=200N
FW=1000N
FN=1000N
F=200NFfr=200N
FW=1000N
FN=1000N
F=300N
FW=1000N
FN=1000N
F=300NFfr=300N
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr=
Static Friction ƒs
bull Static friction acts to keep the object from moving
bull If F increases so does ƒs
bull If F decreases so does ƒs
bull Static friction has a maximum ƒs micros FN
microshellipcoefficient of static friction
More About Friction
bull Friction is proportional to the normal forcebull The coefficient of friction (micro) depends on the
surfaces in contactbull The direction of the frictional force is opposite the
direction of the applied forcebull The coefficients of friction are nearly independent of
the area of contact
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000N
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000NMaximum Ffr= 420N
FW=1000N
FN=1000N
Which force will make the box accelerate ndash Any force that is larger than 420N
Maximum Ffr= 420N
FW=1000N
FN=1000N
F=500NMaximum Ffr= 420N Fnet= 80N
a=08ms2
1 When a 12-newton horizontal force is applied to a box on a horizontal tabletop the box remains at rest What is the force of static friction acting on the box
2 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 N steel block on a steel table in motion
3 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 kilogram steel block on a steel table in motion
4 Jim wishes to push a 100 N wood crate across a wood floor According to your table Approximate Coefficents of Friction what is the minimum horizontal force that would be required to start the crate moving
5 According to your table Approximate Coefficents of Friction which road surface would offer the greatest traction for the rubber tires of a 1000kg car Which force would be required to make the car accelerate on each surface
a dry concreteb wet concretec dry asphaltd wet asphalt
6 A 100kg wooden box is at rest on a wooden floor How much force is necessary to make the box accelerate
7 A 100kg wooden box is at rest on a wooden floor Your friend is pressing the box straight downwards with a force of 500N How much force is necessary to make the box accelerate
8 A 100kg wooden box is at rest on a wooden floor Your friend is lifting the box straight upwards with a force of 500N How much force is necessary to make the box accelerate
- Slide 1
- Slide 2
- Slide 3
- Slide 4
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Static Friction ƒs
- More About Friction
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
-
FW=1000N
FN=1000N
F=200NFfr=200N
FW=1000N
FN=1000N
F=300N
FW=1000N
FN=1000N
F=300NFfr=300N
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr=
Static Friction ƒs
bull Static friction acts to keep the object from moving
bull If F increases so does ƒs
bull If F decreases so does ƒs
bull Static friction has a maximum ƒs micros FN
microshellipcoefficient of static friction
More About Friction
bull Friction is proportional to the normal forcebull The coefficient of friction (micro) depends on the
surfaces in contactbull The direction of the frictional force is opposite the
direction of the applied forcebull The coefficients of friction are nearly independent of
the area of contact
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000N
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000NMaximum Ffr= 420N
FW=1000N
FN=1000N
Which force will make the box accelerate ndash Any force that is larger than 420N
Maximum Ffr= 420N
FW=1000N
FN=1000N
F=500NMaximum Ffr= 420N Fnet= 80N
a=08ms2
1 When a 12-newton horizontal force is applied to a box on a horizontal tabletop the box remains at rest What is the force of static friction acting on the box
2 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 N steel block on a steel table in motion
3 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 kilogram steel block on a steel table in motion
4 Jim wishes to push a 100 N wood crate across a wood floor According to your table Approximate Coefficents of Friction what is the minimum horizontal force that would be required to start the crate moving
5 According to your table Approximate Coefficents of Friction which road surface would offer the greatest traction for the rubber tires of a 1000kg car Which force would be required to make the car accelerate on each surface
a dry concreteb wet concretec dry asphaltd wet asphalt
6 A 100kg wooden box is at rest on a wooden floor How much force is necessary to make the box accelerate
7 A 100kg wooden box is at rest on a wooden floor Your friend is pressing the box straight downwards with a force of 500N How much force is necessary to make the box accelerate
8 A 100kg wooden box is at rest on a wooden floor Your friend is lifting the box straight upwards with a force of 500N How much force is necessary to make the box accelerate
- Slide 1
- Slide 2
- Slide 3
- Slide 4
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Static Friction ƒs
- More About Friction
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
-
FW=1000N
FN=1000N
F=300N
FW=1000N
FN=1000N
F=300NFfr=300N
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr=
Static Friction ƒs
bull Static friction acts to keep the object from moving
bull If F increases so does ƒs
bull If F decreases so does ƒs
bull Static friction has a maximum ƒs micros FN
microshellipcoefficient of static friction
More About Friction
bull Friction is proportional to the normal forcebull The coefficient of friction (micro) depends on the
surfaces in contactbull The direction of the frictional force is opposite the
direction of the applied forcebull The coefficients of friction are nearly independent of
the area of contact
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000N
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000NMaximum Ffr= 420N
FW=1000N
FN=1000N
Which force will make the box accelerate ndash Any force that is larger than 420N
Maximum Ffr= 420N
FW=1000N
FN=1000N
F=500NMaximum Ffr= 420N Fnet= 80N
a=08ms2
1 When a 12-newton horizontal force is applied to a box on a horizontal tabletop the box remains at rest What is the force of static friction acting on the box
2 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 N steel block on a steel table in motion
3 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 kilogram steel block on a steel table in motion
4 Jim wishes to push a 100 N wood crate across a wood floor According to your table Approximate Coefficents of Friction what is the minimum horizontal force that would be required to start the crate moving
5 According to your table Approximate Coefficents of Friction which road surface would offer the greatest traction for the rubber tires of a 1000kg car Which force would be required to make the car accelerate on each surface
a dry concreteb wet concretec dry asphaltd wet asphalt
6 A 100kg wooden box is at rest on a wooden floor How much force is necessary to make the box accelerate
7 A 100kg wooden box is at rest on a wooden floor Your friend is pressing the box straight downwards with a force of 500N How much force is necessary to make the box accelerate
8 A 100kg wooden box is at rest on a wooden floor Your friend is lifting the box straight upwards with a force of 500N How much force is necessary to make the box accelerate
- Slide 1
- Slide 2
- Slide 3
- Slide 4
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Static Friction ƒs
- More About Friction
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
-
FW=1000N
FN=1000N
F=300NFfr=300N
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr=
Static Friction ƒs
bull Static friction acts to keep the object from moving
bull If F increases so does ƒs
bull If F decreases so does ƒs
bull Static friction has a maximum ƒs micros FN
microshellipcoefficient of static friction
More About Friction
bull Friction is proportional to the normal forcebull The coefficient of friction (micro) depends on the
surfaces in contactbull The direction of the frictional force is opposite the
direction of the applied forcebull The coefficients of friction are nearly independent of
the area of contact
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000N
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000NMaximum Ffr= 420N
FW=1000N
FN=1000N
Which force will make the box accelerate ndash Any force that is larger than 420N
Maximum Ffr= 420N
FW=1000N
FN=1000N
F=500NMaximum Ffr= 420N Fnet= 80N
a=08ms2
1 When a 12-newton horizontal force is applied to a box on a horizontal tabletop the box remains at rest What is the force of static friction acting on the box
2 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 N steel block on a steel table in motion
3 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 kilogram steel block on a steel table in motion
4 Jim wishes to push a 100 N wood crate across a wood floor According to your table Approximate Coefficents of Friction what is the minimum horizontal force that would be required to start the crate moving
5 According to your table Approximate Coefficents of Friction which road surface would offer the greatest traction for the rubber tires of a 1000kg car Which force would be required to make the car accelerate on each surface
a dry concreteb wet concretec dry asphaltd wet asphalt
6 A 100kg wooden box is at rest on a wooden floor How much force is necessary to make the box accelerate
7 A 100kg wooden box is at rest on a wooden floor Your friend is pressing the box straight downwards with a force of 500N How much force is necessary to make the box accelerate
8 A 100kg wooden box is at rest on a wooden floor Your friend is lifting the box straight upwards with a force of 500N How much force is necessary to make the box accelerate
- Slide 1
- Slide 2
- Slide 3
- Slide 4
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Static Friction ƒs
- More About Friction
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
-
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr=
Static Friction ƒs
bull Static friction acts to keep the object from moving
bull If F increases so does ƒs
bull If F decreases so does ƒs
bull Static friction has a maximum ƒs micros FN
microshellipcoefficient of static friction
More About Friction
bull Friction is proportional to the normal forcebull The coefficient of friction (micro) depends on the
surfaces in contactbull The direction of the frictional force is opposite the
direction of the applied forcebull The coefficients of friction are nearly independent of
the area of contact
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000N
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000NMaximum Ffr= 420N
FW=1000N
FN=1000N
Which force will make the box accelerate ndash Any force that is larger than 420N
Maximum Ffr= 420N
FW=1000N
FN=1000N
F=500NMaximum Ffr= 420N Fnet= 80N
a=08ms2
1 When a 12-newton horizontal force is applied to a box on a horizontal tabletop the box remains at rest What is the force of static friction acting on the box
2 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 N steel block on a steel table in motion
3 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 kilogram steel block on a steel table in motion
4 Jim wishes to push a 100 N wood crate across a wood floor According to your table Approximate Coefficents of Friction what is the minimum horizontal force that would be required to start the crate moving
5 According to your table Approximate Coefficents of Friction which road surface would offer the greatest traction for the rubber tires of a 1000kg car Which force would be required to make the car accelerate on each surface
a dry concreteb wet concretec dry asphaltd wet asphalt
6 A 100kg wooden box is at rest on a wooden floor How much force is necessary to make the box accelerate
7 A 100kg wooden box is at rest on a wooden floor Your friend is pressing the box straight downwards with a force of 500N How much force is necessary to make the box accelerate
8 A 100kg wooden box is at rest on a wooden floor Your friend is lifting the box straight upwards with a force of 500N How much force is necessary to make the box accelerate
- Slide 1
- Slide 2
- Slide 3
- Slide 4
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Static Friction ƒs
- More About Friction
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
-
Static Friction ƒs
bull Static friction acts to keep the object from moving
bull If F increases so does ƒs
bull If F decreases so does ƒs
bull Static friction has a maximum ƒs micros FN
microshellipcoefficient of static friction
More About Friction
bull Friction is proportional to the normal forcebull The coefficient of friction (micro) depends on the
surfaces in contactbull The direction of the frictional force is opposite the
direction of the applied forcebull The coefficients of friction are nearly independent of
the area of contact
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000N
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000NMaximum Ffr= 420N
FW=1000N
FN=1000N
Which force will make the box accelerate ndash Any force that is larger than 420N
Maximum Ffr= 420N
FW=1000N
FN=1000N
F=500NMaximum Ffr= 420N Fnet= 80N
a=08ms2
1 When a 12-newton horizontal force is applied to a box on a horizontal tabletop the box remains at rest What is the force of static friction acting on the box
2 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 N steel block on a steel table in motion
3 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 kilogram steel block on a steel table in motion
4 Jim wishes to push a 100 N wood crate across a wood floor According to your table Approximate Coefficents of Friction what is the minimum horizontal force that would be required to start the crate moving
5 According to your table Approximate Coefficents of Friction which road surface would offer the greatest traction for the rubber tires of a 1000kg car Which force would be required to make the car accelerate on each surface
a dry concreteb wet concretec dry asphaltd wet asphalt
6 A 100kg wooden box is at rest on a wooden floor How much force is necessary to make the box accelerate
7 A 100kg wooden box is at rest on a wooden floor Your friend is pressing the box straight downwards with a force of 500N How much force is necessary to make the box accelerate
8 A 100kg wooden box is at rest on a wooden floor Your friend is lifting the box straight upwards with a force of 500N How much force is necessary to make the box accelerate
- Slide 1
- Slide 2
- Slide 3
- Slide 4
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Static Friction ƒs
- More About Friction
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
-
More About Friction
bull Friction is proportional to the normal forcebull The coefficient of friction (micro) depends on the
surfaces in contactbull The direction of the frictional force is opposite the
direction of the applied forcebull The coefficients of friction are nearly independent of
the area of contact
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000N
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000NMaximum Ffr= 420N
FW=1000N
FN=1000N
Which force will make the box accelerate ndash Any force that is larger than 420N
Maximum Ffr= 420N
FW=1000N
FN=1000N
F=500NMaximum Ffr= 420N Fnet= 80N
a=08ms2
1 When a 12-newton horizontal force is applied to a box on a horizontal tabletop the box remains at rest What is the force of static friction acting on the box
2 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 N steel block on a steel table in motion
3 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 kilogram steel block on a steel table in motion
4 Jim wishes to push a 100 N wood crate across a wood floor According to your table Approximate Coefficents of Friction what is the minimum horizontal force that would be required to start the crate moving
5 According to your table Approximate Coefficents of Friction which road surface would offer the greatest traction for the rubber tires of a 1000kg car Which force would be required to make the car accelerate on each surface
a dry concreteb wet concretec dry asphaltd wet asphalt
6 A 100kg wooden box is at rest on a wooden floor How much force is necessary to make the box accelerate
7 A 100kg wooden box is at rest on a wooden floor Your friend is pressing the box straight downwards with a force of 500N How much force is necessary to make the box accelerate
8 A 100kg wooden box is at rest on a wooden floor Your friend is lifting the box straight upwards with a force of 500N How much force is necessary to make the box accelerate
- Slide 1
- Slide 2
- Slide 3
- Slide 4
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Static Friction ƒs
- More About Friction
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
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FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000N
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000NMaximum Ffr= 420N
FW=1000N
FN=1000N
Which force will make the box accelerate ndash Any force that is larger than 420N
Maximum Ffr= 420N
FW=1000N
FN=1000N
F=500NMaximum Ffr= 420N Fnet= 80N
a=08ms2
1 When a 12-newton horizontal force is applied to a box on a horizontal tabletop the box remains at rest What is the force of static friction acting on the box
2 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 N steel block on a steel table in motion
3 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 kilogram steel block on a steel table in motion
4 Jim wishes to push a 100 N wood crate across a wood floor According to your table Approximate Coefficents of Friction what is the minimum horizontal force that would be required to start the crate moving
5 According to your table Approximate Coefficents of Friction which road surface would offer the greatest traction for the rubber tires of a 1000kg car Which force would be required to make the car accelerate on each surface
a dry concreteb wet concretec dry asphaltd wet asphalt
6 A 100kg wooden box is at rest on a wooden floor How much force is necessary to make the box accelerate
7 A 100kg wooden box is at rest on a wooden floor Your friend is pressing the box straight downwards with a force of 500N How much force is necessary to make the box accelerate
8 A 100kg wooden box is at rest on a wooden floor Your friend is lifting the box straight upwards with a force of 500N How much force is necessary to make the box accelerate
- Slide 1
- Slide 2
- Slide 3
- Slide 4
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Static Friction ƒs
- More About Friction
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
-
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000N
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000NMaximum Ffr= 420N
FW=1000N
FN=1000N
Which force will make the box accelerate ndash Any force that is larger than 420N
Maximum Ffr= 420N
FW=1000N
FN=1000N
F=500NMaximum Ffr= 420N Fnet= 80N
a=08ms2
1 When a 12-newton horizontal force is applied to a box on a horizontal tabletop the box remains at rest What is the force of static friction acting on the box
2 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 N steel block on a steel table in motion
3 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 kilogram steel block on a steel table in motion
4 Jim wishes to push a 100 N wood crate across a wood floor According to your table Approximate Coefficents of Friction what is the minimum horizontal force that would be required to start the crate moving
5 According to your table Approximate Coefficents of Friction which road surface would offer the greatest traction for the rubber tires of a 1000kg car Which force would be required to make the car accelerate on each surface
a dry concreteb wet concretec dry asphaltd wet asphalt
6 A 100kg wooden box is at rest on a wooden floor How much force is necessary to make the box accelerate
7 A 100kg wooden box is at rest on a wooden floor Your friend is pressing the box straight downwards with a force of 500N How much force is necessary to make the box accelerate
8 A 100kg wooden box is at rest on a wooden floor Your friend is lifting the box straight upwards with a force of 500N How much force is necessary to make the box accelerate
- Slide 1
- Slide 2
- Slide 3
- Slide 4
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Static Friction ƒs
- More About Friction
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
-
FW=1000N
FN=1000N
Which force will make the box accelerate
Maximum Ffr= μFN
Maximum Ffr= 0421000NMaximum Ffr= 420N
FW=1000N
FN=1000N
Which force will make the box accelerate ndash Any force that is larger than 420N
Maximum Ffr= 420N
FW=1000N
FN=1000N
F=500NMaximum Ffr= 420N Fnet= 80N
a=08ms2
1 When a 12-newton horizontal force is applied to a box on a horizontal tabletop the box remains at rest What is the force of static friction acting on the box
2 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 N steel block on a steel table in motion
3 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 kilogram steel block on a steel table in motion
4 Jim wishes to push a 100 N wood crate across a wood floor According to your table Approximate Coefficents of Friction what is the minimum horizontal force that would be required to start the crate moving
5 According to your table Approximate Coefficents of Friction which road surface would offer the greatest traction for the rubber tires of a 1000kg car Which force would be required to make the car accelerate on each surface
a dry concreteb wet concretec dry asphaltd wet asphalt
6 A 100kg wooden box is at rest on a wooden floor How much force is necessary to make the box accelerate
7 A 100kg wooden box is at rest on a wooden floor Your friend is pressing the box straight downwards with a force of 500N How much force is necessary to make the box accelerate
8 A 100kg wooden box is at rest on a wooden floor Your friend is lifting the box straight upwards with a force of 500N How much force is necessary to make the box accelerate
- Slide 1
- Slide 2
- Slide 3
- Slide 4
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Static Friction ƒs
- More About Friction
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
-
FW=1000N
FN=1000N
Which force will make the box accelerate ndash Any force that is larger than 420N
Maximum Ffr= 420N
FW=1000N
FN=1000N
F=500NMaximum Ffr= 420N Fnet= 80N
a=08ms2
1 When a 12-newton horizontal force is applied to a box on a horizontal tabletop the box remains at rest What is the force of static friction acting on the box
2 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 N steel block on a steel table in motion
3 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 kilogram steel block on a steel table in motion
4 Jim wishes to push a 100 N wood crate across a wood floor According to your table Approximate Coefficents of Friction what is the minimum horizontal force that would be required to start the crate moving
5 According to your table Approximate Coefficents of Friction which road surface would offer the greatest traction for the rubber tires of a 1000kg car Which force would be required to make the car accelerate on each surface
a dry concreteb wet concretec dry asphaltd wet asphalt
6 A 100kg wooden box is at rest on a wooden floor How much force is necessary to make the box accelerate
7 A 100kg wooden box is at rest on a wooden floor Your friend is pressing the box straight downwards with a force of 500N How much force is necessary to make the box accelerate
8 A 100kg wooden box is at rest on a wooden floor Your friend is lifting the box straight upwards with a force of 500N How much force is necessary to make the box accelerate
- Slide 1
- Slide 2
- Slide 3
- Slide 4
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Static Friction ƒs
- More About Friction
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
-
FW=1000N
FN=1000N
F=500NMaximum Ffr= 420N Fnet= 80N
a=08ms2
1 When a 12-newton horizontal force is applied to a box on a horizontal tabletop the box remains at rest What is the force of static friction acting on the box
2 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 N steel block on a steel table in motion
3 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 kilogram steel block on a steel table in motion
4 Jim wishes to push a 100 N wood crate across a wood floor According to your table Approximate Coefficents of Friction what is the minimum horizontal force that would be required to start the crate moving
5 According to your table Approximate Coefficents of Friction which road surface would offer the greatest traction for the rubber tires of a 1000kg car Which force would be required to make the car accelerate on each surface
a dry concreteb wet concretec dry asphaltd wet asphalt
6 A 100kg wooden box is at rest on a wooden floor How much force is necessary to make the box accelerate
7 A 100kg wooden box is at rest on a wooden floor Your friend is pressing the box straight downwards with a force of 500N How much force is necessary to make the box accelerate
8 A 100kg wooden box is at rest on a wooden floor Your friend is lifting the box straight upwards with a force of 500N How much force is necessary to make the box accelerate
- Slide 1
- Slide 2
- Slide 3
- Slide 4
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Static Friction ƒs
- More About Friction
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
-
1 When a 12-newton horizontal force is applied to a box on a horizontal tabletop the box remains at rest What is the force of static friction acting on the box
2 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 N steel block on a steel table in motion
3 According to your reference table Approximate Coefficents of Friction what is the minimum horizontal force needed to start a 300 kilogram steel block on a steel table in motion
4 Jim wishes to push a 100 N wood crate across a wood floor According to your table Approximate Coefficents of Friction what is the minimum horizontal force that would be required to start the crate moving
5 According to your table Approximate Coefficents of Friction which road surface would offer the greatest traction for the rubber tires of a 1000kg car Which force would be required to make the car accelerate on each surface
a dry concreteb wet concretec dry asphaltd wet asphalt
6 A 100kg wooden box is at rest on a wooden floor How much force is necessary to make the box accelerate
7 A 100kg wooden box is at rest on a wooden floor Your friend is pressing the box straight downwards with a force of 500N How much force is necessary to make the box accelerate
8 A 100kg wooden box is at rest on a wooden floor Your friend is lifting the box straight upwards with a force of 500N How much force is necessary to make the box accelerate
- Slide 1
- Slide 2
- Slide 3
- Slide 4
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Static Friction ƒs
- More About Friction
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
-