Question

a body weighs 36kg on surface of earth. how much would it weigh on surface of planet whose mass is 1/9th radius 1/3 of that of earth​

Answer 1

Hi Mate !!!

Mg = G M²/ r²....... equation 1

Mg is weight on earth.

G is universal gravitational constant

r is radius of earth.

(Mg)' = GM² / r'²

r' = r / 3 ,. M' = M /9

(Mg)' = G M²/ 9r²...... equation 2

(Mg)' weight on other planet

M' Mass of other plant.

r' is radius of other planet.

Dividing equation 1 and 2 we get

36 / (Mg)' = 9

(Mg)' = 4 N

!!!!!! Have a great future ahead dear!!!!!!