The escape velocity of a body on an imaginary planet which is thrice the radius of the earth and double the mass of the earth is (v_o is the escape velocity of earth)

• A

  $\sqrt{\frac{2}{3}{\mathrm{v}}_0}$

• B

  $\sqrt{\frac{3}{2}}{\mathrm{v}}_0$

• C

  $\frac{\sqrt{2}}{3}{\mathrm{v}}_0$

• D

  $\frac{2}{\sqrt{3}}{\mathrm{v}}_0$