功的定义是力和力方�位移乘积，计算时却又可以分解力然后乘位移，为什么不定义为位移与位移方�力的乘积？ 知乎 Sketch Coloring Page

功的定义是力和力方�位移乘积，计算时却又可以分解力然后乘位移，为什么不定义为位移与位移方�力的乘积？ 知乎 Template

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tomski功的定义是力和力方�位移乘积，计算时却又可以分解力然后乘位移，为什么不定义为位移与位移方�力的乘积？ 知乎 coloring

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