大小相等的水平拉力分别作用于原来静止、质量分别为m1和m2的物体A、B上，使A沿光滑水平面运动了位移s，使B沿粗糙水平面运动了同样的位移，则拉力F对A、B做的功W1和W2相比较___．
人气：219 ℃ 时间：2019-10-17 14:33:48
解答
由公式W=FS可知，力F是恒定不变的，两物体通过的距离s相等，因此W1=W2．
故答案为：W1=W2
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