Find the value of .g(i).at a height of 100 km(ii) at height 6400km from the surface of the earth. (Radius of the earth = 6400 km , g on the surface of the earth = `9.8 ms^(-2)`)

Explanation

(i)Using `g_h=g(1-(2h)/R)`
with h=100 km and R=6400 km , `g_h=9.494m//s^2`
(ii)using `g_h=g/(1+h/R)^2` with h=R g =2.45 `ms^(-2)`