关键词: 偏心碰撞；碰撞力学；轿车；瞬间速度

Abstract: According to the principle of collision mechanics, the determination of the instantaneous speed of frontal eccentric collision for cars in opposite directions is studied in this paper. For different collision situations, through the exchange of collision form, momentum and energy in collision, using the basic principles of mechanics and practical experience summary of related events, the speed equation of the car collision moment is listed, and the ultimate goal is to give the driving speed of the vehicles of both sides under each specific collision condition. At the same time, after giving the calculation formula, the relevant parameters involved in the vehicle speed calculation formula are also analyzed and studied and their application scope is defined. The results provide a practical way to calculate the speed for identifying the speed in road traffic accidents, so as to help and inspire the relevant practitioners in solving the problem of collision speed.

Key words: Eccentric collision; Collision mechanics; Car; Instantaneous speed