Gravitation

A planet having mass \(9 \mathrm{Me}\) and radius \(4 \mathrm{R}_{\mathrm{e}}\), where \(\mathrm{Me}\) and \(\mathrm{Re}\) are mass and radius of earth respectively, has escape velocity in \(\mathrm{km} / \mathrm{s}\) given by:

(Given escape velocity on earth \(\mathrm{V}_{\mathrm{e}}=11.2 \times 10^{3} \mathrm{~m} / \mathrm{s}\) )