设被起吊的重物G=960N,卷扬机上的转臂OA=0.6m,它的轴半径OB=15cm,整个装置的机械效率是80%.(1)当转臂OA转动一周时,物体上升多高(2)A端至少应加多大的力才能将重物匀速提升一定一动,n=3,绳
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/09 08:04:47
![设被起吊的重物G=960N,卷扬机上的转臂OA=0.6m,它的轴半径OB=15cm,整个装置的机械效率是80%.(1)当转臂OA转动一周时,物体上升多高(2)A端至少应加多大的力才能将重物匀速提升一定一动,n=3,绳](/uploads/image/z/11692060-52-0.jpg?t=%E8%AE%BE%E8%A2%AB%E8%B5%B7%E5%90%8A%E7%9A%84%E9%87%8D%E7%89%A9G%3D960N%2C%E5%8D%B7%E6%89%AC%E6%9C%BA%E4%B8%8A%E7%9A%84%E8%BD%AC%E8%87%82OA%3D0.6m%2C%E5%AE%83%E7%9A%84%E8%BD%B4%E5%8D%8A%E5%BE%84OB%3D15cm%2C%E6%95%B4%E4%B8%AA%E8%A3%85%E7%BD%AE%E7%9A%84%E6%9C%BA%E6%A2%B0%E6%95%88%E7%8E%87%E6%98%AF80%EF%BC%85.%EF%BC%881%EF%BC%89%E5%BD%93%E8%BD%AC%E8%87%82OA%E8%BD%AC%E5%8A%A8%E4%B8%80%E5%91%A8%E6%97%B6%2C%E7%89%A9%E4%BD%93%E4%B8%8A%E5%8D%87%E5%A4%9A%E9%AB%98%EF%BC%882%EF%BC%89A%E7%AB%AF%E8%87%B3%E5%B0%91%E5%BA%94%E5%8A%A0%E5%A4%9A%E5%A4%A7%E7%9A%84%E5%8A%9B%E6%89%8D%E8%83%BD%E5%B0%86%E9%87%8D%E7%89%A9%E5%8C%80%E9%80%9F%E6%8F%90%E5%8D%87%E4%B8%80%E5%AE%9A%E4%B8%80%E5%8A%A8%2Cn%3D3%2C%E7%BB%B3)
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