Question

On a planet (whose size is the same and the mass four times as that of the earth) acceleration due to gravity of planet at the Height from surface equal to the radius of planet is
a)2g
b)g
c)3g
d)4g​

Answer 1

Answer:

D) 4g

Explanation:

g = GM/R^2

M is mass of the earth

If M becomes 4M then g becomes 4g as other parameters didn't change