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动量定理

> 甲、乙两物体质量相等。并排静止在光滑水平面上。现用一水平外力F推动甲物体。同时在F的相同方向给物体乙一个瞬时冲量I，使两物体开始运动。当两物体重新相遇时( ) A．甲的动量为I B．甲的动量为2I C．所经历的时间为 D．所经历的时间为

问题：

发布时间：2020-03-13

甲、乙两物体质量相等。并排静止在光滑水平面上。现用一水平外力F推动甲物体。同时在F的相同方向给物体乙一个瞬时冲量I，使两物体开始运动。当两物体重新相遇时( )

A．甲的动量为I B．甲的动量为2I

C．所经历的时间为 D．所经历的时间为

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