Question

The mass and radius of a planet both are double of those of earth. What will be the weight of a man whose mass hi 60kg on earth?​

Answer 1

Answer:

GmM / r^2 = mg

so g = GM/r^2

now mass is 2M

radius is 2R

so force = Gm 2M/ 4r^2= GmM/ r^2 × 1/2

= 60/2 = 30