题目内容：
小球A和B的质量分别为mA和mB，且 mA >mB 。在某高度处将A和B先后从静止释放。小球A与水平面碰撞后向上弹回，在释放处下方与释放处距离为H的地方恰好与正在下落的小球B发生正碰。设所有碰撞都是弹性的，碰撞时间极短。求小球A、B碰撞后上升的B最大高度
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答案解析：
填空题：小球A和B的质量分别为mA和mB，且 mA >mB 。在某高度处将A和B先后从静止释放。小球A与水平面碰撞后向上弹回，在
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