【摘要】 本文所述的一道关于刚体角动量的题目多被有关教材采用,丈中所述的解题方法是该题目的一种常见解法。但此种解法常常会引起读者理解的混乱和疑惑。我们在本文中对此种解法作了一些必要的分析,以帮助读者从这种混乱和疑惑中走出来。更多还原

【Abstract】 The problem on the Augular Momentum of a Rigid Body dealt with in this article has already been adopted in the textbooks related.This approach described in this article is a common one to this problem.But this solution often arouse confusion and puzzles to the readers’ understanding.In this article we make necessary analysis of this approach so to eliminate the readers’ confusion and puzzles.更多还原