d
    Variation of acceleration due to garvity, g with distance \('d'\) from center of the earth

\(If\,\,\,\,\,d < R,g = \frac{{Gm}}{{{R^2}}}.d\,\,\,\,i.e.,g \propto d\left( {straight\,line} \right)\)

\(If\,\,\,\,\,d = R,{g_s} = \frac{{Gm}}{{{R^2}}}\)

\(If\,\,\,\,d > R,g = \frac{{Gm}}{{{d^2}}}\,\,\,\,\,\,i.e.,g \propto \frac{1}{{{d^2}}}\)