一个小球从不同角度的斜坡上滚下去,请问斜坡角度和滚动速度的关系是什么?最好能用一条公式解释 知乎 Template




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tomski一个小球从不同角度的斜坡上滚下去,请问斜坡角度和滚动速度的关系是什么?最好能用一条公式解释 知乎 coloring