Category: 16级物理
190326-路程与位移-22160721
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https://v.youku.com/v_show/id_XNDExNDYxNjk3Ng==.html?spm=a2hzp.8244740.0.0
190423-匀加速直线运动速度与时间的关系-22160732
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190326-运动快慢的描述-22160737
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190423-动能和动能定理-22160704
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