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> 如图所示，箱子放在水平地面上，箱内有一质量为m的铁球以速度v向左壁碰去，来回碰几次后停下来，而箱子始终静止，则整个过程中（　　） A．铁球对箱子的冲量为零 B．铁球和箱子受到的冲量大小相等 C．箱子对铁球的冲量为mv，向右 D．摩擦力对箱子的冲量为mv，向右

问题：

发布时间：2024-09-13

如图所示，箱子放在水平地面上，箱内有一质量为m的铁球以速度v向左壁碰去，来回碰几次后停下来，而箱子始终静止，则整个过程中（　　）

A．铁球对箱子的冲量为零

B．铁球和箱子受到的冲量大小相等

C．箱子对铁球的冲量为mv，向右

D．摩擦力对箱子的冲量为mv，向右

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