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二.动力学普遍定理 应用动力学普遍定理求解动力学问题是解动力学问题的又一种方法。动力学普遍定理是物体运动的基本规律,是动力学的基本理论,也是正点,需要深入掌握。应用动力学普遍定理求解动力学问题,可以不必对运动微分方程进行积分。求出物体运动的整个过程,便可求出物体某瞬时的运动特征量。学习这些定理,一方面要对定理所涉及的那些物理量(如动量、冲量、动量矩、功、动能等)的物理意义及计算熟练掌
The universal theorem of dynamics The application of the universal theorem of dynamics to solving dynamical problems is yet another way to solve dynamical problems. The universal law of dynamics is the basic law of motion of objects, the basic theory of dynamics, and also a punctuation point, which needs to be mastered in depth. Applying the universal theorem of dynamics to solve kinetic problems, you do not have to integrate the differential equations of motion. Find the whole process of object movement, you can find the object an instantaneous amount of movement characteristics. To learn these theorems, on the one hand, we must analyze the physical meaning and calculation of the physical quantities involved in the theorem (such as momentum, impulse, momentum, work, kinetic energy, etc.)