用质点组动能定理分析刚体平面平行运动

STUDY ON PLANE PARALLEL MOTION OF RIGID BODY BY USING THEOREM OF KINETIC ENERGY FOR SYSTEM OF PARTICLES

介绍求解刚体平面平行运动问题的另一种方法──用质点组动能定理取代角动量定理，并推导出质点组动能定理在刚体平面平行运动中的几种不同表达式。

Another method of solving plane parallel motion of rigid body problem is giv-en by using theorem of kinetic energy for system of particles insted of theorem of angularmomentum. And a few different expressions for theorem of kinetic energy for system of par-ticles in plane parallel motion of rigid body are derived.