ANALYSIS OF THE MOTION OF AN ORDINARY CAR STARTING AT A CONSTANT EFFECTIVE POWER

This paper first introduces the origin of “rolling friction force”. Then, it provides a more accurate dynamic equation for a starting car. Furthermore, the acceleration motion of an ordinary car starting at a constant effective power is calculated to obtain a relatively realistic image of the speed changing over time. At the same time, it provides necessary explanations for some key aspects and offers several insights for related basic physics teaching. At the end of the article, some necessary explanations are provided too, and it is pointed out that this paper still belongs to the theoretical model research under a constant effective output power in essence. The main purpose of this paper is to provide a more realistic motion image and to clarify some understandings for reference.