A famous relation in physics relates the moving mass m0 of a particle in terms of its speed v and the speed of light c. (This relation first arose as a consequence of the special theory of relativity due to Albert Einstein). A boy recalls the relation almost correctly but forgets where to put the constant c.
![](https://sahay.guru/wp-content/uploads/2020/08/q273-s-1-1024x689.jpg)