成都地铁三号线站点:help me with this headache

来源：百度文库 编辑：查人人中国名人网 时间：2024/05/04 04:22:53
空间两质点的质量分别m1,m2,彼此以万有引力相互作用。开始时两质点静止，相距r,在万有引力作用下相互靠近并碰撞。求两质点从开始运动到相碰所经历的时间。
我真的是没辙了,望高人来解救。
积分也有积分的难处呀

高考题，不会吧

用积分

次题为某年高考题,查阅相关参考书即可见其详解!

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