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一、模型概述高考卷中常出现涉及两个研究对象的动力学问题,其中包含两种情况:一是两对象的加速度相同,二是两对象的加速度不同.对于这两种情况可以用整体法和隔离法解决.1.整体法是指当连接体内(即系统内)各物体具有相同的加速度时,可以把连接体内所有物体组成的系统作为整体考虑,分析其受力情况,运用牛顿第二定律对整体列方程求解的方法.2.隔离法是指当研究对象涉及由多个物体组成的系统时,
First, the model overview The college entrance examination volume often appears involved in the dynamics of two subjects, which contains two situations: First, the acceleration of the same two objects, and second, the acceleration of the two objects are different for both cases can be used in the overall law and Isolation method .1. The overall method is to connect the body (that is, the system) each object has the same acceleration, the system can be connected to all objects within the system as a whole to consider, analyze the force situation, the use of Newton’s second law The solution to the overall column equation method.2 Isolation method refers to when the research object involves a system composed of multiple objects,