图象法是高中物理解决问题常用的方法之一,在高考的能力中就有“能运用几何图形、函数图象进行分析、表达”的要求。物体间的相对运动问题因为涉及牛顿运动定律、动量、能量等多个力学规律,物理过程变得复杂,学生普遍感到困难和容易出错。在v-t图象上画出每个物体的运动图线,来帮 The image method is one of the commonly used methods for high school physics to solve problems. In the college entrance examination ability, there is a requirement that “geometry and function images can be used for analysis and expression”. The problem of relative motion between objects involves a number of mechanical laws such as Newton’s laws of motion, momentum, and energy. As a result, the physical process becomes complicated, and students generally find it difficult and error-prone. Draw the motion map of each object on the v-t image to help