Question

A body weighs 100 N at the surface of earth. At what height will it weigh 36 N?
[Take R = 6400 km​

Answer 1

Answer:

4267 km.

Explanation:

g = GM/R²

g' = GM/R'²

g/g' = R'²/R2 = 100/36

R' = 10R/6

R' - R = 4R/6

height = 4R/6 = 4x6400/6 = 4267 km.