刚体平动和刚体定轴转动中力学问题的对比研究

The Comparative Study on the Mechanical Issues in Rigid Body Translation and Rigid Body Fixed-axis Rotation

刚体转动一直是普通物理学中的重点和难点。质点运动的相关知识学生都比较熟悉,但是刚体的转动却是首次接触。由于对质点运动的描述和对刚体转动的描述有一定的相似性,而且质点运动和刚体转动的一些定律和定理也有很大的相似程度,因此可以在已有的质点运动知识的基础上,来理解刚体转动的相关知识。

Rigid body rotation is always important and difficult in the general physics. The student is familiar with the particle motion, but first contact the rigid body rotation. Based on the basis that there are some similarities between the description, the law and the theorem of particle motion and rigid body rotation, we can better understand the related knowledge of rigid body rotation in the basis of knowledge of particle motion.