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> 如图所示,在加速向右运动的车厢中,一人用力向前推车厢(人与车厢始终保持相对静止),则下列说法中正确的是( ) A．人对车厢的作用力做正功 B．车厢对人做负功 C．车厢对人做正功 D．车厢对人不做功

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发布时间：2024-09-12

如图所示,在加速向右运动的车厢中,一人用力向前推车厢(人与车厢始终保持相对静止),则下列说法中正确的是( )

A．人对车厢的作用力做正功

B．车厢对人做负功

C．车厢对人做正功

D．车厢对人不做功

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