杠杆练习题怎么做1 有一根重力为G的均匀粗细的木棒放在水平地面上,稍抬起一端,所需的力为多少 2一根1米的杠杆,在它的左端挂10千克的物体,右端挂40千克的物体时,杠杆处于平衡状态,则支点
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![杠杆练习题怎么做1 有一根重力为G的均匀粗细的木棒放在水平地面上,稍抬起一端,所需的力为多少 2一根1米的杠杆,在它的左端挂10千克的物体,右端挂40千克的物体时,杠杆处于平衡状态,则支点](/uploads/image/z/7434335-47-5.jpg?t=%E6%9D%A0%E6%9D%86%E7%BB%83%E4%B9%A0%E9%A2%98%E6%80%8E%E4%B9%88%E5%81%9A1+%E6%9C%89%E4%B8%80%E6%A0%B9%E9%87%8D%E5%8A%9B%E4%B8%BAG%E7%9A%84%E5%9D%87%E5%8C%80%E7%B2%97%E7%BB%86%E7%9A%84%E6%9C%A8%E6%A3%92%E6%94%BE%E5%9C%A8%E6%B0%B4%E5%B9%B3%E5%9C%B0%E9%9D%A2%E4%B8%8A%2C%E7%A8%8D%E6%8A%AC%E8%B5%B7%E4%B8%80%E7%AB%AF%2C%E6%89%80%E9%9C%80%E7%9A%84%E5%8A%9B%E4%B8%BA%E5%A4%9A%E5%B0%91+2%E4%B8%80%E6%A0%B91%E7%B1%B3%E7%9A%84%E6%9D%A0%E6%9D%86%2C%E5%9C%A8%E5%AE%83%E7%9A%84%E5%B7%A6%E7%AB%AF%E6%8C%8210%E5%8D%83%E5%85%8B%E7%9A%84%E7%89%A9%E4%BD%93%2C%E5%8F%B3%E7%AB%AF%E6%8C%8240%E5%8D%83%E5%85%8B%E7%9A%84%E7%89%A9%E4%BD%93%E6%97%B6%2C%E6%9D%A0%E6%9D%86%E5%A4%84%E4%BA%8E%E5%B9%B3%E8%A1%A1%E7%8A%B6%E6%80%81%2C%E5%88%99%E6%94%AF%E7%82%B9)
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