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F=ma适用于单质点的动力学问题,而在具体问题中,所研究对象往往是多个物体,若对每个物体进行隔离分析列式求解,则解题过程
F=ma is applicable to the dynamics of a single particle, but in a specific problem, the object to be studied is often multiple objects. If each object is subjected to isolation analysis, the solution is to solve the problem.