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.
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.
出处
《大学物理》
北大核心
2011年第2期5-8,共4页
College Physics
关键词
柔绳问题
动量定理
机械能定理
陷阱
soft-cord problem
momentum theorem
energy theorem
trap
