g=GMRg=\frac{G M}{R}g=RGM
g=GMR2\mathrm{g}=\frac{\mathrm{GM}}{\mathrm{R}^{2}}g=R2GM
g=GMR3g=\frac{G M}{R^{3}}g=R3GM
g=GM2R2\mathrm{g}=\frac{\mathrm{GM}^{2}}{\mathrm{R}^{2}}g=R2GM2
