SAT Subject Physics Practice Question 592: Answer and Explanation

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Question: 592

3. During a pool game the cue ball is shot at the red ball. When the cue ball strikes the red ball, the cue ball stops dead, and the red ball moves away at the same velocity the cue ball had before the collision. The type of collision represented in this example is

A. an elastic collision.
B. a perfectly inelastic collision.
C. an inelastic collision.
D. all of the above.
E. none of the above.

Correct Answer: A


The correct answer is (A). This is an example of an elastic collision. The momentum of the cue ball transfers to the red ball.

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