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> （8分）如图所示，质量为M的汽车带着质量为m的拖车在平直公路上以加速度a匀加速前进，当速度为v 0时拖车突然与汽车脱钩，到拖车停下瞬间司机才发现。若汽车的牵引力一直未变，车与路面的动摩擦因数为μ，那么拖车刚停下时，汽车的瞬时速度是多大？

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发布时间：2024-09-08

（8分）如图所示，质量为M的汽车带着质量为m的拖车在平直公路上以加速度a匀加速前进，当速度为v ₀时拖车突然与汽车脱钩，到拖车停下瞬间司机才发现。若汽车的牵引力一直未变，车与路面的动摩擦因数为μ，那么拖车刚停下时，汽车的瞬时速度是多大？

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