质量为m的小球在竖直平面内的圆形轨道的内侧运动经过最高点而不脱离轨道的速度临界值是v.当小球以3v 的速度经过最高点时对轨道的压力值是 Template




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tomski质量为m的小球在竖直平面内的圆形轨道的内侧运动经过最高点而不脱离轨道的速度临界值是v.当小球以3v 的速度经过最高点时对轨道的压力值是 coloring