请问在水平面上作纯滚动的小球,其与地面接触点的水平加速度为0吗为什么? 知乎 Template




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Try and sketch some of theseTongue, Sculptor, Campfire, Columbine, Adz, Christmas tree, Crochet, Opossum, Unicycle, Slime, view more ideas


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tomski请问在水平面上作纯滚动的小球,其与地面接触点的水平加速度为0吗为什么? 知乎 coloring