如图6所示在光�的水平面上物体b静止在物体b上固定一个轻弹簧物体a以某一速度沿水平方��右运动通过弹簧与物体b�生作用两物体的质量 Template




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tomski如图6所示在光�的水平面上物体b静止在物体b上固定一个轻弹簧物体a以某一速度沿水平方��右运动通过弹簧与物体b�生作用两物体的质量 coloring