电动车没电了,是骑着省力还是推着省力.普通电动自行车,从能量守恒方面看的话哪个用的能量小。速度骑得是推的两倍。水平距离5000m。我考虑到人体行走时上下运动做功,觉得骑着省力。
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/13 21:17:12
![电动车没电了,是骑着省力还是推着省力.普通电动自行车,从能量守恒方面看的话哪个用的能量小。速度骑得是推的两倍。水平距离5000m。我考虑到人体行走时上下运动做功,觉得骑着省力。](/uploads/image/z/8117683-43-3.jpg?t=%E7%94%B5%E5%8A%A8%E8%BD%A6%E6%B2%A1%E7%94%B5%E4%BA%86%2C%E6%98%AF%E9%AA%91%E7%9D%80%E7%9C%81%E5%8A%9B%E8%BF%98%E6%98%AF%E6%8E%A8%E7%9D%80%E7%9C%81%E5%8A%9B.%E6%99%AE%E9%80%9A%E7%94%B5%E5%8A%A8%E8%87%AA%E8%A1%8C%E8%BD%A6%EF%BC%8C%E4%BB%8E%E8%83%BD%E9%87%8F%E5%AE%88%E6%81%92%E6%96%B9%E9%9D%A2%E7%9C%8B%E7%9A%84%E8%AF%9D%E5%93%AA%E4%B8%AA%E7%94%A8%E7%9A%84%E8%83%BD%E9%87%8F%E5%B0%8F%E3%80%82%E9%80%9F%E5%BA%A6%E9%AA%91%E5%BE%97%E6%98%AF%E6%8E%A8%E7%9A%84%E4%B8%A4%E5%80%8D%E3%80%82%E6%B0%B4%E5%B9%B3%E8%B7%9D%E7%A6%BB5000m%E3%80%82%E6%88%91%E8%80%83%E8%99%91%E5%88%B0%E4%BA%BA%E4%BD%93%E8%A1%8C%E8%B5%B0%E6%97%B6%E4%B8%8A%E4%B8%8B%E8%BF%90%E5%8A%A8%E5%81%9A%E5%8A%9F%EF%BC%8C%E8%A7%89%E5%BE%97%E9%AA%91%E7%9D%80%E7%9C%81%E5%8A%9B%E3%80%82)
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