Question

Discuss the variation of g with altitude

Answer 1

g=GM^2/R
Acceleration due to Gravity varies with altitude and Latitude.
When u go above the sea level, the value of g decreases also when u go below the mean sea level, the value of g decreases...

Answer 2

Consider the variation of g when a body moves distance upward or downward from the surface of earth. Let g be the value of acceleration due to gravity at the surface of earth and g' at a height h above the surface of earth. ... This expression indicates that the acceleration due to gravitydecreases with altitude.