One can easily ” weight the earth ” by calculating the mass of earth using the formula

Q: One can easily ” weight the earth ” by calculating the mass of earth using the formula (in usual notation)

(a) $\frac{G}{g}R_E^2 $

(b) $\frac{g}{G}R_E^2 $

(c) $\frac{G}{g}R_E $

(d) $\frac{G}{g}R_E^3 $

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Ans: (b)