A planet having mass 9 Me and radius 4 R_e, where M e and R e are mass and radius of earth respectively, has escape velocity in km / s given by:…

A planet having mass $\displaystyle 9$ Me and radius $\displaystyle 4 R_e$, where $\displaystyle M e$ and $\displaystyle R e$ are mass and radius of earth respectively, has escape velocity in $\displaystyle \mathrm{km} / \mathrm{s}$ given by: (Given escape velocity on earth $\displaystyle \mathrm{V}_{\mathrm{e}}=11.2 \times 10^3 \mathrm{~m} / \mathrm{s}$ )