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gc textbook chapter 7 Linear Momentum (id: 842a580bd)

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admin 发表于 2024-12-11 22:30:46 | 显示全部楼层 |阅读模式
本题目来源于试卷: gc textbook chapter 7 Linear Momentum,类别为 通用国际物理

[问答题]
When a person jumps e z*hz -,z 1nb1.bhyc1su6hghc5g6m df /ku8:bkxlq ,qrom a tree to the ground, what happens to the momentum of the person upon striking thk,ub8 q/q: xlke ground?




参考答案:
Consider this problem as a very light object hitting and sticking to a very heavy object.  The large object – small object combination (Earth + jumper) would have some momentum after the collision, but due to the very large mass of the Earth, the velocity of the combination is so small that it is not measurable.  Thus the jumper lands on the Earth, and nothing more happens.


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