1.用n只定滑轮,n只动滑轮组成滑轮组来匀速提升重物G(不计动滑轮重及摩擦)加在绳子上的自由端拉力向下,则拉力应为 A.G/n B.G/2n C.2G/n D.G/4n 2.下图中按力的大小排序应为?yh89
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![1.用n只定滑轮,n只动滑轮组成滑轮组来匀速提升重物G(不计动滑轮重及摩擦)加在绳子上的自由端拉力向下,则拉力应为 A.G/n B.G/2n C.2G/n D.G/4n 2.下图中按力的大小排序应为?yh89](/uploads/image/z/7152177-57-7.jpg?t=1.%E7%94%A8n%E5%8F%AA%E5%AE%9A%E6%BB%91%E8%BD%AE%2Cn%E5%8F%AA%E5%8A%A8%E6%BB%91%E8%BD%AE%E7%BB%84%E6%88%90%E6%BB%91%E8%BD%AE%E7%BB%84%E6%9D%A5%E5%8C%80%E9%80%9F%E6%8F%90%E5%8D%87%E9%87%8D%E7%89%A9G%EF%BC%88%E4%B8%8D%E8%AE%A1%E5%8A%A8%E6%BB%91%E8%BD%AE%E9%87%8D%E5%8F%8A%E6%91%A9%E6%93%A6%EF%BC%89%E5%8A%A0%E5%9C%A8%E7%BB%B3%E5%AD%90%E4%B8%8A%E7%9A%84%E8%87%AA%E7%94%B1%E7%AB%AF%E6%8B%89%E5%8A%9B%E5%90%91%E4%B8%8B%2C%E5%88%99%E6%8B%89%E5%8A%9B%E5%BA%94%E4%B8%BA+A.G%2Fn+B.G%2F2n+C.2G%2Fn+D.G%2F4n+2.%E4%B8%8B%E5%9B%BE%E4%B8%AD%E6%8C%89%E5%8A%9B%E7%9A%84%E5%A4%A7%E5%B0%8F%E6%8E%92%E5%BA%8F%E5%BA%94%E4%B8%BA%3Fyh89)
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