The accelerationdue to gravity for falling bodies is taken to be constant Justify this in view of the - Science - Gravitation

Question

The accelerationdue to gravity for falling bodies is taken to be
constant Justify this in view of the fact that the distance of a
falling body from the earth's surface keep changing

Vara · Accepted Answer

The acceleration due to gravity is taken to be constant for the
falling bodies from a height whose value is negligible compared to
the radius of the Earth It is approximately equal to 9 8 m/s^2
But, when the bodies are falling from a great height whose
value is comparable with the radius of the Earth, then the
acceleration due to gravity is not taken as constant It increases
on moving towards the surface of Earth from a great height

The accelerationdue to gravity for falling bodies is taken to be constant . Justify this in view of the fact that the distance of a falling body from the earth's surface keep changing.