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整体法与隔离法是在高中物理学习中常用到的基本方法之一,特别是在力学部分,巧妙地选择研究对象会使问题变得简单明了。一、知识整合1.牛顿第二定律(1)大小关系:F=ma(2)方向关系:a与F方向相同(3)对系统F合=m1a1+m2a2+……
The holistic and isolation laws are one of the basic methods commonly used in high school physics study. Especially in the mechanics part, cleverly choosing the research object makes the problem simple and straightforward. First, the knowledge integration 1. Newton’s second law (1) the size of the relationship: F = ma (2) the direction of the relationship: a and F the same direction (3) for the system F = m1a1 + m2a2 + ......