AP Physics 1 Question 355: Answer and Explanation

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Question: 355

3. The picture above depicts the collision of two balls of equal mass. Which arrow best indicates the direction of the impulse on Ball A from Ball B during the collision?

  • A.
  • B.
  • C.
  • D.

Correct Answer: D

Explanation:

D

In the picture, neither ball experiences any change in its horizontal motion. Ball A is originally moving down, but moves up after the collision. Therefore, the impulse it received is entirely up.