Question

And also take the value of g on earth's surface as 10.​

Answer 1

Answer:

I hope it's helpful.............

Answer 2

Answer:

R/4

Explanation:

g = GM/R²

g' = GM/R'²

g'/g = 0.64 = R²/R'² , R' = 1.25R

Height above earth's surface = R' - R = 0.25R = R/4