一个物体的质量是3000kg,起重机刚丝绳对物体的拉力有多大?用力的图示法表示物体受到的力(g取10N/kg)(1)物体以2m/s的速度匀速上升.(2)起重机悬吊着物体静止不动.(3)物体静止在水平地
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![一个物体的质量是3000kg,起重机刚丝绳对物体的拉力有多大?用力的图示法表示物体受到的力(g取10N/kg)(1)物体以2m/s的速度匀速上升.(2)起重机悬吊着物体静止不动.(3)物体静止在水平地](/uploads/image/z/9602450-26-0.jpg?t=%E4%B8%80%E4%B8%AA%E7%89%A9%E4%BD%93%E7%9A%84%E8%B4%A8%E9%87%8F%E6%98%AF3000kg%2C%E8%B5%B7%E9%87%8D%E6%9C%BA%E5%88%9A%E4%B8%9D%E7%BB%B3%E5%AF%B9%E7%89%A9%E4%BD%93%E7%9A%84%E6%8B%89%E5%8A%9B%E6%9C%89%E5%A4%9A%E5%A4%A7%3F%E7%94%A8%E5%8A%9B%E7%9A%84%E5%9B%BE%E7%A4%BA%E6%B3%95%E8%A1%A8%E7%A4%BA%E7%89%A9%E4%BD%93%E5%8F%97%E5%88%B0%E7%9A%84%E5%8A%9B%EF%BC%88g%E5%8F%9610N%2Fkg%29%281%29%E7%89%A9%E4%BD%93%E4%BB%A52m%2Fs%E7%9A%84%E9%80%9F%E5%BA%A6%E5%8C%80%E9%80%9F%E4%B8%8A%E5%8D%87%EF%BC%8E%EF%BC%882%EF%BC%89%E8%B5%B7%E9%87%8D%E6%9C%BA%E6%82%AC%E5%90%8A%E7%9D%80%E7%89%A9%E4%BD%93%E9%9D%99%E6%AD%A2%E4%B8%8D%E5%8A%A8%EF%BC%8E%EF%BC%883%EF%BC%89%E7%89%A9%E4%BD%93%E9%9D%99%E6%AD%A2%E5%9C%A8%E6%B0%B4%E5%B9%B3%E5%9C%B0)
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