如图所示,两个木块,质量忽略.分别受水平和垂直的力.各接触面的摩擦系数均为tan10º,问:(1)Q=100N,θ=75º时,欲使木块1向下移动,P最少应该是多大?(2)如果忽略一切摩擦,其他条件和(1
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![如图所示,两个木块,质量忽略.分别受水平和垂直的力.各接触面的摩擦系数均为tan10º,问:(1)Q=100N,θ=75º时,欲使木块1向下移动,P最少应该是多大?(2)如果忽略一切摩擦,其他条件和(1](/uploads/image/z/13227427-19-7.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E4%B8%A4%E4%B8%AA%E6%9C%A8%E5%9D%97%2C%E8%B4%A8%E9%87%8F%E5%BF%BD%E7%95%A5.%E5%88%86%E5%88%AB%E5%8F%97%E6%B0%B4%E5%B9%B3%E5%92%8C%E5%9E%82%E7%9B%B4%E7%9A%84%E5%8A%9B.%E5%90%84%E6%8E%A5%E8%A7%A6%E9%9D%A2%E7%9A%84%E6%91%A9%E6%93%A6%E7%B3%BB%E6%95%B0%E5%9D%87%E4%B8%BAtan10%26%23186%3B%2C%E9%97%AE%EF%BC%9A%EF%BC%881%EF%BC%89Q%3D100N%2C%CE%B8%3D75%26%23186%3B%E6%97%B6%2C%E6%AC%B2%E4%BD%BF%E6%9C%A8%E5%9D%971%E5%90%91%E4%B8%8B%E7%A7%BB%E5%8A%A8%2CP%E6%9C%80%E5%B0%91%E5%BA%94%E8%AF%A5%E6%98%AF%E5%A4%9A%E5%A4%A7%3F%EF%BC%882%EF%BC%89%E5%A6%82%E6%9E%9C%E5%BF%BD%E7%95%A5%E4%B8%80%E5%88%87%E6%91%A9%E6%93%A6%2C%E5%85%B6%E4%BB%96%E6%9D%A1%E4%BB%B6%E5%92%8C%EF%BC%881)
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