如图所示,竖直轻弹簧一端固定在水平地面上,另一端上面放着两个相同的木块A和B,其质量均为m=2kg,现在A上作用竖直向下的力F=20N,使A,B保持静止【1】分析A.B受力情况【2】当撤去力F的瞬间,A.B之
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![如图所示,竖直轻弹簧一端固定在水平地面上,另一端上面放着两个相同的木块A和B,其质量均为m=2kg,现在A上作用竖直向下的力F=20N,使A,B保持静止【1】分析A.B受力情况【2】当撤去力F的瞬间,A.B之](/uploads/image/z/8087432-32-2.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E7%AB%96%E7%9B%B4%E8%BD%BB%E5%BC%B9%E7%B0%A7%E4%B8%80%E7%AB%AF%E5%9B%BA%E5%AE%9A%E5%9C%A8%E6%B0%B4%E5%B9%B3%E5%9C%B0%E9%9D%A2%E4%B8%8A%2C%E5%8F%A6%E4%B8%80%E7%AB%AF%E4%B8%8A%E9%9D%A2%E6%94%BE%E7%9D%80%E4%B8%A4%E4%B8%AA%E7%9B%B8%E5%90%8C%E7%9A%84%E6%9C%A8%E5%9D%97A%E5%92%8CB%2C%E5%85%B6%E8%B4%A8%E9%87%8F%E5%9D%87%E4%B8%BAm%3D2kg%2C%E7%8E%B0%E5%9C%A8A%E4%B8%8A%E4%BD%9C%E7%94%A8%E7%AB%96%E7%9B%B4%E5%90%91%E4%B8%8B%E7%9A%84%E5%8A%9BF%3D20N%2C%E4%BD%BFA%2CB%E4%BF%9D%E6%8C%81%E9%9D%99%E6%AD%A2%E3%80%901%E3%80%91%E5%88%86%E6%9E%90A.B%E5%8F%97%E5%8A%9B%E6%83%85%E5%86%B5%E3%80%902%E3%80%91%E5%BD%93%E6%92%A4%E5%8E%BB%E5%8A%9BF%E7%9A%84%E7%9E%AC%E9%97%B4%2CA.B%E4%B9%8B)
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