问题
操作题
（1）在图1中用线代表绳子，将两个滑轮连成最省力的滑轮组，要求人用力往下拉绳使重物上升。
（2）如图2所示，用滑轮组沿水平地面拉动物体A，请画出最省力的绕绳的方法。
图1 图2
答案
（1）“略”（提示：二段绳子组成的滑轮组）
（2）“略”（提示：由三段绳子组装的滑轮组，拉力向左）
搜题请搜索小程序“爱下问搜题”
（1）在图1中用线代表绳子，将两个滑轮连成最省力的滑轮组，要求人用力往下拉绳使重物上升。
（2）如图2所示，用滑轮组沿水平地面拉动物体A，请画出最省力的绕绳的方法。
图1 图2
（1）“略”（提示：二段绳子组成的滑轮组）
（2）“略”（提示：由三段绳子组装的滑轮组，拉力向左）
| 阅读理解。 | ||||
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