大学物理 ›› 2011, Vol. 30 ›› Issue (2): 5-5.

• 著者文摘 • 上一篇    下一篇

对用动量定理解柔绳问题陷阱的探究

路峻岭 秦联华 王长江   

  1. 清华大学物理系,北京100084
  • 出版日期:2011-02-25 发布日期:2011-02-20

Research on a trap of solving problem involved a soft cord by using momentum theorem

  • Online:2011-02-25 Published:2011-02-20

摘要: 对柔软绳子下落或提升过程中在某些点存在的“速度突变”所产生的误解进行分析.提出解决问题的方法.并用实验加以检验.

关键词: 柔绳问题, 动量定理, 机械能定理, 陷阱

Abstract: A misunderstanding for a cord being lifted up or falling down is analyzed, there is a point of sudden change of velocity in it. A way to solve the problem is proposed and which is examined by experiment.

Key words: soft-cord problem, momentum theorem, energy theorem, trap

中图分类号: 

  • O313