Given that acceleration due to gravity varies inversely as the square of the distance from the
Channel: Doubtnut
Date: 26/07/2020

Given that acceleration due to gravity varies inversely as the square of the distance from the center of earth, find its value at a height of 64 km from the earth's surface , if the value at the surface be `9.81ms^(-2)`. Radis of earth`=6400km`.