AP Physics C: Mechanics Practice Test
AP Physics C: Mechanics Practice Test
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Question 1 of 19
1. Question
A sphere of mass M, radius r, and rotational inertia I is released from the rest at the top of an inclined plane of height h as shown below.
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Question 2 of 19
2. Question
In an elastic collision, what combination of quantities is conserved?
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Question 3 of 19
3. Question
In an inelastic collision, which combination of quantities is conserved?
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Question 4 of 19
4. Question
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Question 5 of 19
5. Question
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Question 6 of 19
6. Question
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Question 7 of 19
7. Question
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Question 8 of 19
8. Question
A light, ideal spring with a spring constant k = 100 N/m and uncompressed length L = 0.30 m is mounted to the fixed end of a frictionless plane inclined at an angle θ = 30°. Then a mass M 0.300 kg is affixed to the end of the spring and allowed to slowly slide down the plane until it is resting in an equilibrium position. Now, at a distance d = 0.30 m above x0, a second mass m = 0.200 kg is now placed, and released so that it slides down the ramp to collide with mass M as shown in the figure below. Calculate the speed of m just before it strikes mass M.
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Question 9 of 19
9. Question
A light, ideal spring with a spring constant k = 100 N/m and uncompressed length L = 0.30 m is mounted to the fixed end of a frictionless plane inclined at an angle θ = 30°. Then a mass M 0.300 kg is affixed to the end of the spring and allowed to slowly slide down the plane until it is resting in an equilibrium position. Now, at a distance d = 0.30 m above x0, a second mass m = 0.200 kg is now placed, and released so that it slides down the ramp to collide with mass M as shown in the figure below.Determine the speed of mass M and m just after they stick together in a perfectly inelastic collision.
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Question 10 of 19
10. Question
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Question 11 of 19
11. Question
An air track glider of mass M is built, consisting of two smaller connected gliders with a small explosive charge located between them. The glider is traveling along a frictionless rail at 2 m/s to the right when the charge is detonated, causing the smaller glider with mass 1/4 M, to move off to the right at 5 m/s. What is the final velocity of the second small glider?
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Question 12 of 19
12. Question
A force acting on an object varies as a function of time according to the equation F = k t2,
where k is a constant. If the object had an initial momentum of 0 at time t = 0, what is the
momentum of the object at time t?CorrectIncorrect -
Question 13 of 19
13. Question
A flat piece of metal of uniform density has the shape and dimensions shown here. The center of mass for the piece of metal is located at: Ans: xCM (cm); yCM (cm)
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Question 14 of 19
14. Question
A 500-gram cart rolls with negligible friction along a straight flat track until it collides with a 750-gram cart that was initially at rest. Position-time data for the 500-gram cart before it hits the other cart is recorded in the data table below. At time t = 2 seconds, the two carts collide in a perfectly inelastic collision. Calculate the final velocity of the 500-gram cart after this collision.
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Question 15 of 19
15. Question
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Question 16 of 19
16. Question
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Question 17 of 19
17. Question
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Question 18 of 19
18. Question
A baseball player hits a 150 g baseball initially moving at 35 m/s , returning it at a speed of 45 m/s along the same path. If the ball was in contact with the bat for 1ms, what magnitude of force did the ball experience during the moment of contact?
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Question 19 of 19
19. Question
If atom A moves at a constant velocity, v, toward atom B, which of the following is most likely to be true?
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