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本文阐明了刚体平面运动对瞬心的动量矩定理,并通过实例运算,对所阐明的问题,加以验证。然后对“大学物理”杂志所载“刚体对瞬心的转动方程”一文的论证方法上的缺陷进行分析讨论。
In this paper, the theorem of moment of momentum of the instantaneous center of rigid-body plane motion is expounded, and the problems clarified by examples are verified. Then the paper discusses the defects in the demonstration method of the article “The Rotation Equation of Rigid Body to the Instantaneous Center” contained in University Physics.