Question

a body weight 450 on the surface of earth how much will it weight on the surface of a Planet whose mass is ¹/9th mass of Earth and radius is half. of radius of earth​

Answer 1

Answer:

Weight of body on surface of planet=Wx=198N.

Explanation:

ge: acceleration due to gravity on Earth.

gx: acceleration due to gravity on planet X.

ge=GMe/Re^2.

gx=GMx/Rx^2.

first ,we have to find gx by comparing these 2 equations.

here put the values of Mx and Rx.

Mx=1/9Me.

Rx=1/2Re.

since we know mass remains constant everywhere in universe.

Mass in this case is 45kg.

Now u can easily find Wx by using formula,Wx=m*gx