The moon's radius is 1 4 th that of the earth & its mass is 1 80 times that of earth, if g represents the acceleration due to gravity on the surface of earth, that on the surface of moon is -

Question

The moon's radius is 1 4 th that of the earth & its mass is 1 80 times that of earth, if g represents the acceleration due to gravity on the surface of earth, that on the surface of moon is -, g 4, g 5, g 6, g 8

MARKS App · Accepted Answer

We know gravitational acceleration g = G M R 2 for moon R m = 1 4 R & M m = M 80 so g ′ = G ( M 80 ) ( R 4 ) 2 = G M 5 R 2 = g 5

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