楼主: xxtrumpf
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转矩问题 |
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点评
半径100,F1=10N,半径50,F2=20N。这样杆子才能平衡。所以说,共轴的圆盘力矩一样。对不?
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点评
如果踩的力气不变,换来换去,你觉得自行车会跑的快还是跑的慢?
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