高考中常有一类这样的题型:题目涉及到三个物体,而整个物理过程又要以分解为多个只有两个两个的物体分别发生作用的过程.为了阐述的方便,本文把具有以上特点的问题叫做“二体作用的三体问题”.该类问题是历年高考的热点.一、弹簧三体问题在涉及三个运动物体的题目中,若仅有两 In the college entrance examination, there is often one such question type: the subject involves three objects, and the entire physical process is decomposed into a process in which only two or two objects respectively function. For the convenience of explanation, this article has the above features. The problem is called the “two-body three-body problem.” This type of problem is a hot spot in the college entrance examination over the years. First, the spring three-body problem in the subject involving three moving objects, if only two