Torque and Angular Acceleration Torque = = #Nm -a force acting at a distance away from a pivot...
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Transcript of Torque and Angular Acceleration Torque = = #Nm -a force acting at a distance away from a pivot...
![Page 1: Torque and Angular Acceleration Torque = = #Nm -a force acting at a distance away from a pivot -causes a twist -torque is vector -direction is often.](https://reader036.fdocuments.in/reader036/viewer/2022071806/56649d215503460f949f5dff/html5/thumbnails/1.jpg)
Torque and Angular AccelerationTorque = = #Nm
-a force acting at a distance away from a pivot
-causes a twist-torque is vector
-direction is oftenClockwise (CW)Counterclockwise (CCW)
= F r or = I
![Page 2: Torque and Angular Acceleration Torque = = #Nm -a force acting at a distance away from a pivot -causes a twist -torque is vector -direction is often.](https://reader036.fdocuments.in/reader036/viewer/2022071806/56649d215503460f949f5dff/html5/thumbnails/2.jpg)
Torque and Angular Acceleration
Why is a door knob located as far as possible from the door hinge?
![Page 3: Torque and Angular Acceleration Torque = = #Nm -a force acting at a distance away from a pivot -causes a twist -torque is vector -direction is often.](https://reader036.fdocuments.in/reader036/viewer/2022071806/56649d215503460f949f5dff/html5/thumbnails/3.jpg)
Torque and Angular Acceleration
Why is a door knob located as far as possible from the door hinge?
-You increase the “lever arm”
Hinge
Doorknob
![Page 4: Torque and Angular Acceleration Torque = = #Nm -a force acting at a distance away from a pivot -causes a twist -torque is vector -direction is often.](https://reader036.fdocuments.in/reader036/viewer/2022071806/56649d215503460f949f5dff/html5/thumbnails/4.jpg)
Torque and Angular Acceleration
Torque’s unit is Newton meters
-Units of energy1Nm = 1J
-Never use Joules as a unit for torque.
![Page 5: Torque and Angular Acceleration Torque = = #Nm -a force acting at a distance away from a pivot -causes a twist -torque is vector -direction is often.](https://reader036.fdocuments.in/reader036/viewer/2022071806/56649d215503460f949f5dff/html5/thumbnails/5.jpg)
Torque and Angular Acceleration
Newton’s First Law (revisited)-An object at rest will remain at rest, an object rotating will remain rotating, unless acted upon by an unbalanced outside torque
![Page 6: Torque and Angular Acceleration Torque = = #Nm -a force acting at a distance away from a pivot -causes a twist -torque is vector -direction is often.](https://reader036.fdocuments.in/reader036/viewer/2022071806/56649d215503460f949f5dff/html5/thumbnails/6.jpg)
Torque and Angular Acceleration
Static EquilibriumTwo Conditions
-Forces must be balanced-Torques must be balanced
![Page 7: Torque and Angular Acceleration Torque = = #Nm -a force acting at a distance away from a pivot -causes a twist -torque is vector -direction is often.](https://reader036.fdocuments.in/reader036/viewer/2022071806/56649d215503460f949f5dff/html5/thumbnails/7.jpg)
Torque and Angular Acceleration
Static Equilibrium ScenarioTwo Forces are balanced
N
mg
![Page 8: Torque and Angular Acceleration Torque = = #Nm -a force acting at a distance away from a pivot -causes a twist -torque is vector -direction is often.](https://reader036.fdocuments.in/reader036/viewer/2022071806/56649d215503460f949f5dff/html5/thumbnails/8.jpg)
Torque and Angular Acceleration
Static Equilibrium ScenarioTwo Torques are balanced
Mass 1= 50 gramsRadius 1 = 10 cm Mass 2= 100 grams
Radius 2 = 5 cm
![Page 9: Torque and Angular Acceleration Torque = = #Nm -a force acting at a distance away from a pivot -causes a twist -torque is vector -direction is often.](https://reader036.fdocuments.in/reader036/viewer/2022071806/56649d215503460f949f5dff/html5/thumbnails/9.jpg)
H:\IP Sims\Rotational Dynamics\Net Torque Example.IP
Torque and Angular Acceleration
Let’s look at an example where torques are not balanced
Click here…
![Page 10: Torque and Angular Acceleration Torque = = #Nm -a force acting at a distance away from a pivot -causes a twist -torque is vector -direction is often.](https://reader036.fdocuments.in/reader036/viewer/2022071806/56649d215503460f949f5dff/html5/thumbnails/10.jpg)
Torque and Angular Acceleration
Ladder Example (Ladder is at rest)
Ground
Wall
![Page 11: Torque and Angular Acceleration Torque = = #Nm -a force acting at a distance away from a pivot -causes a twist -torque is vector -direction is often.](https://reader036.fdocuments.in/reader036/viewer/2022071806/56649d215503460f949f5dff/html5/thumbnails/11.jpg)
Torque and Angular Acceleration
Ladder Example (Ladder is at rest)
Ground
Wall
![Page 12: Torque and Angular Acceleration Torque = = #Nm -a force acting at a distance away from a pivot -causes a twist -torque is vector -direction is often.](https://reader036.fdocuments.in/reader036/viewer/2022071806/56649d215503460f949f5dff/html5/thumbnails/12.jpg)
Torque and Angular Acceleration
Ladder Example (Ladder is at rest)
Ground
Wall
Ff1
Ff2
N1
N2
mg
![Page 13: Torque and Angular Acceleration Torque = = #Nm -a force acting at a distance away from a pivot -causes a twist -torque is vector -direction is often.](https://reader036.fdocuments.in/reader036/viewer/2022071806/56649d215503460f949f5dff/html5/thumbnails/13.jpg)
Credits
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![Page 14: Torque and Angular Acceleration Torque = = #Nm -a force acting at a distance away from a pivot -causes a twist -torque is vector -direction is often.](https://reader036.fdocuments.in/reader036/viewer/2022071806/56649d215503460f949f5dff/html5/thumbnails/14.jpg)
Credits
Host
MC Webb
Funky Beats by…
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