Physics - Gravitation Question with Solution | TestHub

Gravitational acceleration on the surface of a planet is $\frac{\sqrt{6}}{11}\mathrm{g}$, where $g$ is the gravitational acceleration on the surface of the earth. The average mass density of the planet is $\frac{2}{3}$ times that of the earth. If the escape speed on the surface of the earth is taken to be 11 ${\mathrm{kms}}^{-1}$, the escape speed on the surface of the planet in ${\mathrm{kms}}^{-1}$ will be