细绳OA长为30cm,O的一端与质量为m=1kg,A端与轻质圆环(重力不计)相连,圆环套在水平棒上可以滑动定滑轮固定在距离圆环50cm处,跨过定滑轮的细绳,两端分别与重物m,重物G相连.若两条细绳间的夹
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![细绳OA长为30cm,O的一端与质量为m=1kg,A端与轻质圆环(重力不计)相连,圆环套在水平棒上可以滑动定滑轮固定在距离圆环50cm处,跨过定滑轮的细绳,两端分别与重物m,重物G相连.若两条细绳间的夹](/uploads/image/z/2388404-20-4.jpg?t=%E7%BB%86%E7%BB%B3OA%E9%95%BF%E4%B8%BA30cm%2CO%E7%9A%84%E4%B8%80%E7%AB%AF%E4%B8%8E%E8%B4%A8%E9%87%8F%E4%B8%BAm%3D1kg%2CA%E7%AB%AF%E4%B8%8E%E8%BD%BB%E8%B4%A8%E5%9C%86%E7%8E%AF%28%E9%87%8D%E5%8A%9B%E4%B8%8D%E8%AE%A1%EF%BC%89%E7%9B%B8%E8%BF%9E%2C%E5%9C%86%E7%8E%AF%E5%A5%97%E5%9C%A8%E6%B0%B4%E5%B9%B3%E6%A3%92%E4%B8%8A%E5%8F%AF%E4%BB%A5%E6%BB%91%E5%8A%A8%E5%AE%9A%E6%BB%91%E8%BD%AE%E5%9B%BA%E5%AE%9A%E5%9C%A8%E8%B7%9D%E7%A6%BB%E5%9C%86%E7%8E%AF50cm%E5%A4%84%2C%E8%B7%A8%E8%BF%87%E5%AE%9A%E6%BB%91%E8%BD%AE%E7%9A%84%E7%BB%86%E7%BB%B3%2C%E4%B8%A4%E7%AB%AF%E5%88%86%E5%88%AB%E4%B8%8E%E9%87%8D%E7%89%A9m%2C%E9%87%8D%E7%89%A9G%E7%9B%B8%E8%BF%9E.%E8%8B%A5%E4%B8%A4%E6%9D%A1%E7%BB%86%E7%BB%B3%E9%97%B4%E7%9A%84%E5%A4%B9)
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