摘要
经典力学中有关质点系的运动定律已经表述得相当清楚 .但在实际问题中人们往往会产生各种不同的认识和理解 ,因而此类问题在各种教学研讨场合经常成为争论的热点 .通过对系统的几种受力状态的讨论、分析、对比 ,明确传统表述方式无可厚非 .通过对质点系运动定理和质点系动能定理的全局理解 ,就可以大大提高认识和解决问题的能力 .
The particle system movement rule has been stated clearly in the classical of force.In fact there can be all kinds of different ideas and explanations.So these problems are often discussed in the teaching.From starting with the force function,the same outside force field is not the same outside force is pointed out.Through discussing, analyzing, comparing the systems,it is no doubt to define the traditional relate on.As long as the particle system movement rule is deepen to know, these problems can be improved to overcome.
出处
《西北建筑工程学院学报（自然科学版）》
2000年第4期76-78,共3页
Journal of Northwestern Institute of Architectural Engineering
关键词
质点系
质心
外力
内力
动量
功
运动定律
particle system
the center of mass
outside force
internal force
momentum
work
