Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.
-
Upload
baldric-randell-wells -
Category
Documents
-
view
230 -
download
0
Transcript of Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.
![Page 1: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/1.jpg)
Physics 10-29
Type 2 Projectile MotionType 3 Projectile Motion
Max HeightThrowing marshmellows
![Page 2: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/2.jpg)
All late homework due Wednesday by Beginning of
homeroom!!!Nothing will be accepted after that
time
![Page 3: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/3.jpg)
Some people need to take the last test
![Page 4: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/4.jpg)
Physics tests are not yet graded
But I think all of the rest of the graded assignments are
![Page 5: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/5.jpg)
All other grades will be added to the second marking period
Including the pictures of the 8 simple machines
(If you need an extra day to complete the assignment, take it)
![Page 6: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/6.jpg)
Type 1
• What information is automatically given for a type 1 problem?
• Give an example of a type one projectile not connected to running a car off a cliff
![Page 7: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/7.jpg)
Type one answers
• Both accelerations
• Vertical initial velocity = 0
• A person running off a dock
• A person shooting the gun horizontally
![Page 8: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/8.jpg)
Type 2
• What is assumed to be given in a type 2 problem?
• Can you think of an example of a type 2 projectile not involving a soccer ball and a level playing field
![Page 9: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/9.jpg)
Type 2 answers
• Both accelerations
• The vertical displacement = 0
• Kickoff at a football game
• A horse jumping over a gate
![Page 10: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/10.jpg)
Type 2 new material
• Use trigonometry to break the overall initial velocity into its horizontal and vertical parts (components)
• SOHCAHTOA
![Page 11: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/11.jpg)
Type 3
• Is a combination of the other types
• Kicking a soccer ball off the cliff
![Page 12: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/12.jpg)
Assumptions of type 3
• Accelerations of object
• The overall initial velocity has to be broken up into its horizontal and vertical components
• BUT NO OTHER guaranteed assumptions
![Page 13: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/13.jpg)
Example problem for Type 3
• Susan kicks a ball off the top of a 50 m high cliff. It leaves the cliff with a velocity of 65 m/s at an angle of 37° from horizontal. Complete the chart.
![Page 14: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/14.jpg)
Initial Chart
a 0 -9.8
d -50
Initial v
Final v
VH
t
![Page 15: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/15.jpg)
Break apart initial velocity
65 m/s V
H
Cos (37) = (H / 65)
0.799 = H / 65
H = 51.9
Sin (37) = V / 65
0.602 = V / 65
V = 39.1
![Page 16: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/16.jpg)
Chart with initial velocities
a 0 -9.8
d -50
Initial v 51.9 39.1
Final V 51.9
time
VH
Use the vertical information to solve for the FINAL Velocity if
You want to avoid using quadratic equations
![Page 17: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/17.jpg)
Final steps
• Once you get the vertical final velocity
• Then use the easy equation to solve for time
• Then solve for the rest the same way we have always done it in these projectile problems
![Page 18: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/18.jpg)
Projectile work
• You see a set of 5 problems in various parts of the room.
• Go to a set, pick one and begin to solve
• All problems need to be completed for homework and can be found on the internet or as a handout from here at the end of school
![Page 19: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/19.jpg)
Problem #1
A player kicks a football from the ground level with a velocity of magnitude 27.0 m/s at an angle pf 30.0° above the horizontal.
a) find the ‘hang time’, that is the time the ball is in the air.
b) the distance the ball travels before it hits the ground
![Page 20: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/20.jpg)
Problem #2
A player kicks a football from the ground level with a velocity of magnitude 27.0 m/s at an angle pf 60.0° above the horizontal.
a) find the ‘hang time’, that is the time the ball is in the air.
b) the distance the ball travels before it hits the ground
![Page 21: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/21.jpg)
Problem #3
• A beach ball, moving with a speed of +1.27 m/s. rolls off a pier and hits the water 0.75 m from the end of the pier.
How high above the water is the pier?
![Page 22: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/22.jpg)
Problem #4
• A shot put is released with a velocity of 12 m/s and stays in the air for 2.0 s.
a) At what angle with the horizontal was it released?
b) What horizontal distance did it travel
![Page 23: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/23.jpg)
Problem #5
• An archer stands 40.0 m from the target. If the arrow is shot horizontally with a velocity of 90.0 m/s, how far above the bulls-eye must he aim to compensate for gravity pulling his arrow downward?
![Page 24: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/24.jpg)
Answers• Problem #1
a) 2.76 s b)64.5 m
Problem #2a) 4.78 s b) 64.5 nm
Problem #31.7 m
Problem #4a) 55° b) 14m
Problem #5a) 0.966 m
![Page 25: Physics 10-29 Type 2 Projectile Motion Type 3 Projectile Motion Max Height Throwing marshmellows.](https://reader036.fdocuments.in/reader036/viewer/2022081512/5697bf731a28abf838c7f105/html5/thumbnails/25.jpg)
Challenge problem
• A rude tourist throws a peach pit horizontally with 7.0 m/s velocity out of an elevator cage. The elevator is moving upward with a constant velocity of 8.5 m/s velocity.
• How long will it take the peach pit to land on the ground, 17.0 m below his initial position?