એક R ત્રિજ્યા અને એમ દળના ગોળાની ફરતે r_1

$g = \frac{4}{3}\pi \rho Gr$
$g \propto r $ if $r < R$
$g = \frac{{GM}}{{{r^2}}}$
$g \propto \frac{1}{{{r^2}}}$ if $r > R$
If ${r_1} < R$ and ${r_2} < R$ then $\frac{{{F_1}}}{{{F_2}}} = \frac{{{g_1}}}{{{g_2}}} = \frac{{{r_1}}}{{{r_2}}}$
If ${r_1} > R$ and ${r_2} > R$ then $\frac{{{F_1}}}{{{F_2}}} = \frac{{{g_1}}}{{{g_2}}} = {\left( {\frac{{{r_2}}}{{{r_1}}}} \right)^2}$