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06-28[物理]李老师教你处理滑轮组的基本方法 推荐理由：同学初始学习的滑轮有动滑轮和定滑轮两种，对于单一的动滑轮或定滑轮的题目不是很难。但是在实际出现的题目中还会出现两种滑轮同时存在的情况，在解决此类问题时，同学们可能会觉得有困难，下面李老师将教你通过对每一个滑轮单独进行受力...全文
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ZY750467878：6666666666(2013-06-29 20:14)
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wjzth：tibucuohenhao(2013-06-29 13:58)
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fbx1999：1.5N因该是吧没那么难(2013-06-29 11:52)
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lixing1232008：看看答案！！！！！！！！！(2013-06-29 09:44)
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qwe8518370：6N不知道对不对啊。(2013-06-29 09:30)
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Sadism：是6N？起初没看题还以为是1.5(2013-06-28 17:43)
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a2502294087：应该是6N吧(2013-06-28 17:31)
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