推荐回答（1个）
高中二年级必修二内容可以告诉你：万有引力可以运用到任何物体中去，因为万有引力代表的就是两个物体间的相互吸引力（要不然怎么能叫万有引力）F=G·Mm：R的平方，而黄金替代公式则是万有引力的一种特殊情况，即万有引力F等于星球本身重力的时候——即F=mg时对星体间圆周运动的解释，mg=G·Mm：R的二次方，M指的是中心天体的质量，而这里的m是绕中心天体表面（一定要记住是表面！）做圆周运动的星体的质量，G是引力常量，是由大英帝国著名的物理学家卡文迪许测量出的，目前采用标准值，即6.67乘以10的负11次方，第二个m与第一个m表示的意义一样，运用数学知识我们知道，两个m可以抵消，即，最终公式为——GM=g·R的平方。 这是一个理科物理曾经很不错的文科生资深解答，纯手打，望采纳。
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