Variation of Gravitational acceleration ‘g’
At poles or longitude:
At equator or latitude:
At some altitude (height):
It decreases linearly, and is inversely proportional to the depth in Earth. Let ‘go' be the value of gravitational acceleration on Earth’s surface from center of Earth and the radius be ‘R’ and 'gx' be the value of gravitational acceleration at a depth of ‘(R – x)’ , So, a formula can be derived which gives
The value of g will become maximum or infinity in that case.
At poles the radius is smaller so gravitational acceleration is large and at equator radius is large so value of acceleration due to gravity gets smaller.