摘要
通过分析重链沿光滑直角面下滑过程中的运动情况,阐述了桌角弹力及其对重链运动所起的作用。
Through the analysis of the case that the weight chain slides down on the smooth plane of right angle, the action of elastic force N of table angle on the motion of the weight chain is explained.
关键词
变质量系统
动能
动平衡方程
Variable mass systems
Kinetic energy
Dynamic balance equation
