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