Abstract
The relativistic momentum is concerned with the motion of a body whose velocity approaches the speed of light. Also, the velocity of a moving object with mass is less than the speed of light because light has no mass and the speed of light is the upper limit for the speeds of all objects in the universe. In this article, a novel mass-energy equation is derived using the Lorentz factor and the kinetic energy of classical mechanics.



![Author ORCID: We display the ORCID iD icon alongside authors names on our website to acknowledge that the ORCiD has been authenticated when entered by the user. To view the users ORCiD record click the icon. [opens in a new tab]](https://www.cambridge.org/engage/assets/public/coe/logo/orcid.png)