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一、整体法和隔离法当我们所研究的问题是涉及多个物体组成的系统,系统中各物体的加速度相同时,可以把系统中的所有物体看成一个整体,用牛顿第二定律求加速度,这种思维方法叫整体法,为了研究问题方便,常把某个物体从系统中“隔离”出来,作为研究对象,分析受力情况,应用牛顿第
First, the holistic method and the isolation method When the problem we are investigating involves a system composed of multiple objects, when the accelerations of the objects in the system are the same, all the objects in the system can be seen as a whole and the acceleration is calculated using Newton’s second law. This method of thinking is called the holistic method. To facilitate the study of problems, we often “isolated” an object from the system as a research object, analyze the force conditions, and apply Newtonian rules.