次数 | 钩码重力G/N | 钩码上升的高度h/cm | 拉力F/N | 绳端移动的距离s/cm | 机械效率η |
1 | 1.0 | 10 | 0.6 | 30 | 55.6% |
2 | 1.5 | 10 | 0.8 | 30 | |
3 | 2.0 | 10 | 1.0 | 30 | 66.7% |
4 | 2.0 | 20 | 1.0 | 60 | 66.7% |