,传送带AB始终保持v=1m/s的速度水平移动,将一质量为m=0.5 kg的物块从离皮带很近处轻轻放在A点,物体与皮带间的动摩擦因数为0.2,AB之间的距离L=2.5 m.求物体由A运动到B所花的时间.
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![,传送带AB始终保持v=1m/s的速度水平移动,将一质量为m=0.5 kg的物块从离皮带很近处轻轻放在A点,物体与皮带间的动摩擦因数为0.2,AB之间的距离L=2.5 m.求物体由A运动到B所花的时间.](/uploads/image/z/13427085-21-5.jpg?t=%2C%E4%BC%A0%E9%80%81%E5%B8%A6AB%E5%A7%8B%E7%BB%88%E4%BF%9D%E6%8C%81v%EF%BC%9D1m%2Fs%E7%9A%84%E9%80%9F%E5%BA%A6%E6%B0%B4%E5%B9%B3%E7%A7%BB%E5%8A%A8%2C%E5%B0%86%E4%B8%80%E8%B4%A8%E9%87%8F%E4%B8%BAm%EF%BC%9D0.5+kg%E7%9A%84%E7%89%A9%E5%9D%97%E4%BB%8E%E7%A6%BB%E7%9A%AE%E5%B8%A6%E5%BE%88%E8%BF%91%E5%A4%84%E8%BD%BB%E8%BD%BB%E6%94%BE%E5%9C%A8A%E7%82%B9%2C%E7%89%A9%E4%BD%93%E4%B8%8E%E7%9A%AE%E5%B8%A6%E9%97%B4%E7%9A%84%E5%8A%A8%E6%91%A9%E6%93%A6%E5%9B%A0%E6%95%B0%E4%B8%BA0.2%2CAB%E4%B9%8B%E9%97%B4%E7%9A%84%E8%B7%9D%E7%A6%BBL%EF%BC%9D2.5+m%EF%BC%8E%E6%B1%82%E7%89%A9%E4%BD%93%E7%94%B1A%E8%BF%90%E5%8A%A8%E5%88%B0B%E6%89%80%E8%8A%B1%E7%9A%84%E6%97%B6%E9%97%B4.)
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