斜面倾斜程度 | 小车重G/N | 斜面高h/m | 斜面长s/m | 拉力F/N | 有用功W有/J | 总功W总/J | 机械效率η/% |
较缓 | 5 | 0.2 | 1 | 2.1 | 1.0 | 2.1 | 47.6 |
较陡 | 5 | 0.5 | 1 | 3.6 | 2.5 | ▲ | 69.4 |
最陡 | 5 | 0.7 | 1 | 4.3 | 3.5 | 4.3 | 81.4 |