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向物理專業講“剛體動力學”時,是以福里斯和季莫列娃合著的普通物理學第一卷第五章作為主要參考材料。本文先初步討論一下福里斯書的第一卷第五章,然後提出一個如何講解剛體動力學的意见。下面谈福里斯書時,所引的頁數与節數是指中譯本的最新版(一九五四年十二月北京版)而言。該版係根據俄文本一九五三年增訂版译出的。我個人認为該書第五章有下列幾點不妥: 1.在說明刚體繞定軸轉動的方程式 M=Iβ時,用力f对于转动中心O點的力矩[122頁(3)式]来说明作用在刚体上的力对於轉動軸
When talking about “rigid body dynamics” to the physics major, the fifth chapter of the first volume of general physics co-authored by Forres and Timoreva was taken as the main reference material. This article first discusses the fifth chapter of the first volume of Forbes, and then proposes an opinion on how to explain the dynamics of rigid bodies. In the following, the number of pages quoted and the number of verses quoted in the book of Forlis refer to the latest edition of the Chinese translation (Beijing, December 1954). The edition was translated according to the Russian version of 1953. I personally think that the book Chapter V is inappropriate: 1. In the description of rigid body around the axis of rotation M = Iβ, the force f for the center of rotation O point [122 (3)] To illustrate the role of the rigid body force on the axis of rotation