Question

the weight of the body on the surface of the earth is 392N. what will be the weight of this body on a planet whose mass is double than that of earth and radius is four times the radius of the earth.

Answer 1

ANSWER = 49 N

HOPE IT HELPS ^^^^^^^^

Answer 2

g' = GM' / R'^2

g' = G(2M) / (4R)^2

g' = GM / 8R^2

g' = g / 8

g' = 9.8 / 8

g' = 1.225 m/s^2

Weight of the body on planet is -

W = mg'

W = 40 × 1.225

W = 49 N