Question

The acceleration due to gravity becomes g/2 (g= acceleration due to gravity on the surface of earth) at a height equal to

Answer 1

We know that g’/g = R²/(R+h)²

( g/2)/g = [R/R+h]² ? 1/2=[R/R+H]^2
That is 1/root2=R/R+H
R+H=root2 R
H=root2 R-R
H=R(root2-1)


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