物理中经常会遇到涉及“相对”的问题,如相对位移、相对速度、相对加速度等,如果我们在一个图象中画出两个物体运动的对比图线,再通过寻找其中的斜率、正负、截距、面积等所表示的物理意义进一步对问题进行分析,解决问题会事半功倍。本文通过面积的方法来解答两道高考试题。 Often encountered in the physical problems involving “relative”, such as relative displacement, relative velocity, relative acceleration, etc., if we draw the contrast line of two object motions in an image, then by looking for the slope The physical meaning represented by the positive, negative, intercept, area, etc. further analyzes the problem and solves the problem with less effort. This article uses the area method to answer two high exam questions.