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> （1）若 h=5 R，求小球通过 M点时对轨道的压力；（2）若改变 h的大小，小球通过最高点时的动能 Ek也随之改变，试通过计算在 Ek- h图中作出 Ek随 h变化的关系图象．

问题：

发布时间：2020-03-13

（1）若 h=5 R，求小球通过 M点时对轨道的压力；
（2）若改变 h的大小，小球通过最高点时的动能 E_k也随之改变，试通过计算在 E_k- h图中作出 E_k随 h变化的关系图象．

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（1）若 h=5 R，求小球通过 M点时对轨道的压力； （2）若改变 h的大小，小球通过最高点时的动能 Ek也随之改变，试通过计算在 Ek- h图中作出 Ek随 h变化的关系图象．

可能感兴趣的题目：

（1）若 h=5 R，求小球通过 M点时对轨道的压力；
（2）若改变 h的大小，小球通过最高点时的动能 E_k也随之改变，试通过计算在 E_k- h图中作出 E_k随 h变化的关系图象．