在现行的教辅资料中,经常见到以下这道轻绳连接体习题及类似的解法。笔者认为,此题解答有误,现将其疑点指出与大家共议。一、原题与原解如图1所示,两轻质滑轮固定于天花板A、B两处,AB间的距离为l=1m,忽略滑轮的大小与绳间的摩擦。一根轻质长绳穿过两个滑轮,它的两端都系上质量为m的重物,使两个滑轮间的绳子水平, In the current teaching materials, we often see the following light rope connection exercises and similar solutions. The author believes that this question is wrong, now point out its doubts and we agree. First, the original title and the original solution shown in Figure 1, two light-weight fixed to the ceiling A, B two, AB distance l = 1m, ignoring the size of the pulley and friction between the rope. A light long rope through the two pulleys, both ends of which are attached to the mass of m weight, so that the rope between the two pulley level,