如图的轨道ABCD中,AB,CD为光滑圆弧轨道,BC为长2米的水平轨道轨道ABCD中,AB,CD为光滑圆弧轨道,BC为长2米的水平轨道,物体与水平轨道间的动摩擦因数为0.2,质量为m的物体从h=1m的A处由静止开始滑下,
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![如图的轨道ABCD中,AB,CD为光滑圆弧轨道,BC为长2米的水平轨道轨道ABCD中,AB,CD为光滑圆弧轨道,BC为长2米的水平轨道,物体与水平轨道间的动摩擦因数为0.2,质量为m的物体从h=1m的A处由静止开始滑下,](/uploads/image/z/4066221-21-1.jpg?t=%E5%A6%82%E5%9B%BE%E7%9A%84%E8%BD%A8%E9%81%93ABCD%E4%B8%AD%2CAB%2CCD%E4%B8%BA%E5%85%89%E6%BB%91%E5%9C%86%E5%BC%A7%E8%BD%A8%E9%81%93%2CBC%E4%B8%BA%E9%95%BF2%E7%B1%B3%E7%9A%84%E6%B0%B4%E5%B9%B3%E8%BD%A8%E9%81%93%E8%BD%A8%E9%81%93ABCD%E4%B8%AD%2CAB%2CCD%E4%B8%BA%E5%85%89%E6%BB%91%E5%9C%86%E5%BC%A7%E8%BD%A8%E9%81%93%2CBC%E4%B8%BA%E9%95%BF2%E7%B1%B3%E7%9A%84%E6%B0%B4%E5%B9%B3%E8%BD%A8%E9%81%93%2C%E7%89%A9%E4%BD%93%E4%B8%8E%E6%B0%B4%E5%B9%B3%E8%BD%A8%E9%81%93%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%2C%E8%B4%A8%E9%87%8F%E4%B8%BAm%E7%9A%84%E7%89%A9%E4%BD%93%E4%BB%8Eh%3D1m%E7%9A%84A%E5%A4%84%E7%94%B1%E9%9D%99%E6%AD%A2%E5%BC%80%E5%A7%8B%E6%BB%91%E4%B8%8B%2C)
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