Question

the mass and radius of a Planet are both doubled that of earth. what will be weight of a man on that planet if his mass is given to be 60 kg

Answer 1

g=GM/r²


so when M and r becomes twice

then

G2M/(2r)²

G2M/4r²

GM/2r²

g/2

hence g becomes half

w=mg

and therefore w gets reduced by half

and hence becomes 30 kgf.

Answer 2

Answer:

it is the answer

Explanation:

make the answer as brain list