Question

The weight of a body is measured on planet earth as M . When it is taken to a planet of radius half that of the earth then its value will be

Answer 1

Answer:

2Mg

Explanation:

since, acceleration due to gravity at earth

g= GM/R

now acceleration due to gravity at planet

(radius of planet=R/2)

g'=GM/0.5R=2GM/R

=2g

so the weight(W) of a body of mass(M) at the planet is

W=Mg'

=M2g

W=2Mg

I hope this will help you.