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> 下列几种物理现象的解释中，正确的是 [ ] A．砸钉子时不用橡皮锤，只是因为橡皮锤太轻 B．跳高时在沙坑里填沙，是为了减小冲力 C．在推车时推不动是因为推力的冲量为零 D．动量相同的两个物体受到相同的制动力的作用，两个物体将同时停下来

问题：

发布时间：2024-09-11

下列几种物理现象的解释中，正确的是
[ ]
A．砸钉子时不用橡皮锤，只是因为橡皮锤太轻
B．跳高时在沙坑里填沙，是为了减小冲力
C．在推车时推不动是因为推力的冲量为零
D．动量相同的两个物体受到相同的制动力的作用，两个物体将同时停下来

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