Question

Write arelationshiobetween change in momentum mass and velocity of a body when velocity of the body is alnost equal to speed of light

Answer 1

The velocity of a body cannot be equal to the speed of light because Einstein's famous equation E=mc2 shows that energy can be converted into mass and energy can also be converted into mass.

when speed of a body becomes equal to the speed of light, mass of the body becomes infinite. And there is not any body with infinite mass.