Question

URGENT.....The ratio of gravitational accelaration of planet (of mass 3 times the mass of earth and diameter twice the earth) to the gravitational accelaration of earth is
1) 4/3 2) 3/4 3)1/4 4)1/2

Answer 1

HEY FRIEND HERE IS UR ANSWER

i think there is some mistake in question
diameter may be replace by radius .

mass of planet is 3 times the mass of earth and diameter twice the earth .
M = 3
R = 2.

According to the formula of gravitational acceleration :
g = GM/R^2
put the value of G,M,R

g = G× 3/2^2
g = G × 3/4
so 3/4 is ur answer

if we multiply 3/4 ×9.8(G)
then g = 7.35m/s^2

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