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运用力学的概念解决物理习题时,经常会混淆有关概念的具体应用情境.物体间的相互作用,考虑力的不同效应,或者选取不同的研究对象,便可以运用不同的力学定律解决不同的问题.通过下面这个题目的不同解法,可以加深学生对力学定律理解,了解它们的区别与联系.例质量分别为m1=5kg,m2=3kg的两个物体,用绳子悬挂在定滑轮上,如图所示,物体m1从距地面h=0.5m处,由静止开始下落.试求当m1落地后,m2离地面的最大高度是多
The use of the concept of mechanics to solve physical problems often confuses the specific context of the concept.Effective interaction between objects, different effects of consideration, or the selection of different subjects, can use different laws of mechanics to solve different problems. Through the following different solutions of this topic, students can deepen the understanding of the laws of mechanics to understand their differences and relations.Examples of quality m1 = 5kg, m2 = 3kg of two objects, with a rope hanging on the fixed pulley, as shown Show, the object m1 from the ground h = 0.5m Department, from where the static start and fall. When asked m1 landing, m2 maximum height from the ground is more