次数 | 钩码所受的重力G/N | 钩码提升的高度h/m | 拉力F/N | 绳端移动的距离s/m | 机械效率η |
1 | 1.0 | 0.1 | 0.8 | 0.4 | 31.25% |
2 | 1.0 | 0.2 | 0.8 | 0.8 | 31.25% |
3 | 2.0 | 0.1 | 1.2 | 0.4 | 41.67% |
4 | 3.0 | 0.1 | 1.5 |