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> 质量为1 kg、初速度v 0＝10 m/s的物体，受到一个与初速度v 0方向相反，大小为3 N的外力F的作用力，沿粗糙的水平面滑动，物体与地面间的动摩擦因数为0.2，经3 s后撤去外力，则物体滑行的总位移为多少？(取g＝10 m/s 2)

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发布时间：2024-09-12

质量为1 kg、初速度v ₀＝10 m/s的物体，受到一个与初速度v ₀方向相反，大小为3 N的外力F的作用力，沿粗糙的水平面滑动，物体与地面间的动摩擦因数为0.2，经3 s后撤去外力，则物体滑行的总位移为多少？(取g＝10 m/s ²)

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