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高中《物理》上册第15页,有这样一段叙述:“当绳子受力处于平衡状态,或者绳子的质量很小,可以略去不计时,绳子上各点的张力都相等……”。(人民教育出版社1979年12月第一版,着重点系笔者所加)复旦大学与上海师范大学合编的《物理学》(力学)第103页,对绳子张力问题的讨论,也有类似的结论。那末,“绳子受力处于平衡状态或日绳的加速度等于零”做为绳上各点的张力处处相等
On the 15th page of the book “Physics” in high school, there is a narrative: “When the rope is in balance, or the quality of the rope is very small, it may be omitted and the tension on all points of the rope is equal...”. (People’s Education Press, first edition, December 1979, focusing on the author’s addition) “Physics” (Mechanics), edited by Fudan University and Shanghai Normal University, on page 103. Discussions on string tensions are similar. in conclusion. Then, “The rope is in equilibrium or the acceleration of the rope is equal to zero” as the tension of the points on the rope is equal everywhere.