本题目来源于试卷: Space Time & Motion A.2 Forces & Momentum，类别为 IB物理学
[单选题]
A table tennis ball of mass m is dropped on a dt m/ fm**kmk5level surface fromligo 8( /zi )rjbm6/pd a height $H$. The ball rebounds to a height $h < H$ after impact. Which of the following is correct about the nature of the collision and magnitude of the change in momentum $(\Delta p)$ of the ball as a result of this impact?
A. Nature of the collision is Elastic; Change in momentum $\Delta p$ is $m(\sqrt{2gH}-\sqrt{2gh})$
B. Nature of the collision is Inelastic; Change in momentum $\Delta p$ is $m(\sqrt{2gH}-\sqrt{2gh})$
C. Nature of the collision is Elastic; Change in momentum $\Delta p$ is $m(\sqrt{2gH}+\sqrt{2gh})$
D. Nature of the collision is Inelastic; Change in momentum $\Delta p$ is $m(\sqrt{2gH}+\sqrt{2gh})$
参考答案: D
本题详细解析:
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