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简述影响跑的力有哪些
更新时间: 2020-10-31 00:00:00  

简述影响跑的力有:内力是人体各部位之间相互作用时所产生的力,如肌肉收缩力(肌肉拉力)通过骨骼的传递作用于地面。外力是人体与外界物体相互作用时,外界物体对人体作用的力。

根据牛顿第三定律,两个物体之间的作用,力和反作用力总是同时存在,两者的大小相等、方向相反。

关键词: 简述 影响 哪些

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