1, the characteristics of the problem of chasing and meeting: the main condition of chasing is that two objects reach the same position at the same time in the process of chasing. In the process of catching up, when the speed of the pursuer is higher than that of the pursued, the distance between them decreases. When the speed of the pursuer is less than that of the pursued, the distance between them increases;

2. Method to solve the problem of meeting: analyze the movement process of two objects, draw a schematic diagram of the movement of the objects, and mark the displacement on the diagram in order to find out the displacement relationship. According to the motion properties of the two objects, the displacement equations of the two objects are listed respectively, and the time relationship is reflected in the equations. According to the motion diagram, find out the displacement relationship and coordinate equation of two objects;

3. Matters needing attention in chasing problems: We must grasp one condition and two relationships. One condition refers to the critical condition that the speed of two objects meets, and the two relations refer to the time relationship and the displacement relationship. If the chased object makes a uniform deceleration motion, it is important to pay attention to whether the object has stopped moving before catching up.