一个人用滑轮组100N拉起重250N的物体,物体移动速度是0.3m/s.求功率(绳子股数为3股)
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![一个人用滑轮组100N拉起重250N的物体,物体移动速度是0.3m/s.求功率(绳子股数为3股)](/uploads/image/z/3569178-66-8.jpg?t=%E4%B8%80%E4%B8%AA%E4%BA%BA%E7%94%A8%E6%BB%91%E8%BD%AE%E7%BB%84100N%E6%8B%89%E8%B5%B7%E9%87%8D250N%E7%9A%84%E7%89%A9%E4%BD%93%2C%E7%89%A9%E4%BD%93%E7%A7%BB%E5%8A%A8%E9%80%9F%E5%BA%A6%E6%98%AF0.3m%2Fs.%E6%B1%82%E5%8A%9F%E7%8E%87%EF%BC%88%E7%BB%B3%E5%AD%90%E8%82%A1%E6%95%B0%E4%B8%BA3%E8%82%A1%EF%BC%89)
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