摘要
运用系统的动能定理处理传送带的牵引力和功率问题.
Two approaches of resolving the problem of conveyor belt, the traditional method using the theorem of momentum for system, and the method using the work-energy theorem for system, are compared.
出处
《物理与工程》
2006年第5期19-19,22,共2页
Physics and Engineering
关键词
传送带
系统的动能定理
一对力的功
conveyor belt
work energy theorem for system
work by acting force and reac ring force
