A Tennis Ball Bounces Off a Brick Wall

question 46

Multiple Choice

A tennis ball bounces off a brick wall. Which of the following is true?

• A) The total momentum of the ball, wall, and Earth is conserved in this process.
• B) The momentum of the ball is conserved in this process.
• C) If the collision is elastic, then the ball's velocity does not change in this process.
• D) None of these is true.

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