physics
posted by Sejul on .
person weighs 526 N on Earth. Another planet has twice the mass of Earth and Twice the radius of Earth.
Find the weight on the other planet. I need help with a formula too.

force =kM/r^2= 2x/(2)^2x=1/2
so what is 1/2 526 
Amar has a weight of 600N on Earth . what is his weight on mercury?