滑轮组的设计问题,一直是初中物理教学中的难点,为了有效地突破这一障碍,教师们可谓费尽了心机,介绍此类题目解法的文章也多次出现于各类刊物,《中学物理》2003年第11期就曾刊登过王国飞老师的《浅谈滑轮组的设计》,在这篇文章里,王老师采用了求“股数”、定“个数”、找“起点 The design of pulleys has always been a difficulty in junior high school physics teaching. In order to effectively break this barrier, teachers have exhausted their efforts. Articles that describe the solution to such problems have also appeared in various publications. Wang Jiafei’s “Design of Pulley Blocks” was once published in the article. In this article, Wang used the “number of shares”, the “number of sets”, and the “starting point”.