Using the coefficient of restitution to solve collision problems has more advantages than the conventional method of using the law of conservation of energy: the results of linear equations are unique, the calculations are more convenient, and the scope of application is broader, compensating for the limitation of the law of conservation of energy, which can only solve problems of perfectly elastic collisions. It can solve various collision problems, including direct and oblique collisions between particles and particles, particles and rigid bodies, and rigid bodies and rigid bodies. Moreover, the coefficient of restitution can also be used to quickly judge the rationality of collision problems and correct unreasonable propositions. It is hoped that the use of the coefficient of restitution will deepen students' understanding of the collision process and also serve as a reference for teachers in creating reasonable problem propositions.

To implement the decision-making and deployment of the Party Central Committee and the State Council on the comprehensive reform of education, in accordance with the spirit of the “Several Opinions of the General Office of the State Council on Deepening the Integration of Industry and Education”, deepen the integration of industry and education, as well as school enterprise cooperation, promote the all-round integration of the supply side of talent training and the structural elements of the industrial demand side, university physics teaching should carry out all-round reforms from the teaching content, teaching methods and teaching modes, so as to lay the foundation for cultivating a large number of high-quality innovative technical skilled talents.