铁链长1.4m,从悬点处断开,使其自由下落,不计空气阻力,则整个铁链通过悬点下方3.2m处的一点需要的时间为多少秒?0.8s是错的啊,老师说不对...
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/07 09:44:33
![铁链长1.4m,从悬点处断开,使其自由下落,不计空气阻力,则整个铁链通过悬点下方3.2m处的一点需要的时间为多少秒?0.8s是错的啊,老师说不对...](/uploads/image/z/10958796-36-6.jpg?t=%E9%93%81%E9%93%BE%E9%95%BF1.4m%2C%E4%BB%8E%E6%82%AC%E7%82%B9%E5%A4%84%E6%96%AD%E5%BC%80%2C%E4%BD%BF%E5%85%B6%E8%87%AA%E7%94%B1%E4%B8%8B%E8%90%BD%2C%E4%B8%8D%E8%AE%A1%E7%A9%BA%E6%B0%94%E9%98%BB%E5%8A%9B%2C%E5%88%99%E6%95%B4%E4%B8%AA%E9%93%81%E9%93%BE%E9%80%9A%E8%BF%87%E6%82%AC%E7%82%B9%E4%B8%8B%E6%96%B93.2m%E5%A4%84%E7%9A%84%E4%B8%80%E7%82%B9%E9%9C%80%E8%A6%81%E7%9A%84%E6%97%B6%E9%97%B4%E4%B8%BA%E5%A4%9A%E5%B0%91%E7%A7%92%3F0.8s%E6%98%AF%E9%94%99%E7%9A%84%E5%95%8A%EF%BC%8C%E8%80%81%E5%B8%88%E8%AF%B4%E4%B8%8D%E5%AF%B9...)
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