AP Physics 1 Question 439: Answer and Explanation
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Question: 439
7. Question below refers to the following scenario:
A 2 kg ball with a velocity of -20 m/s collides with the wall and bounces back with a velocity of 10 m/s.
How much work did the wall do on the ball?
- A. -300 J
- B. -400 J
- C. -750 J
- D. -1,000 J
Correct Answer: A
Explanation:
A
The work done can be calculated using the Work-Energy Theorem:
