Question

why does Mars have different expression viz u and gm

Answer 1

:) plz write it properly I can't understand

Answer 2

I think you are asking why mars has a different expression of the gravitational force in mars

First garavitational force is force that acts towards the centre ofvthe earth gravitational force is responsible for the falling of objects towards the ground for example if you throw a stone it goes back to the ground

Studies show that the expression of gravity is not there in the mars