A solid sphere of mass M and radius r slips on a rough horizontal plane. At some instant it has translational velocity v₀ and rotational velocity about the centre v₀/2r . The translational velocity after the sphere starts pure rolling

• A

  $\frac{6{\mathrm{v}}_0}{7}$ in forward direction

• B

  $\frac{6{\mathrm{v}}_0}{7}$ in backward direction

• C

  $\frac{7{\mathrm{v}}_0}{6}$in forward direction

• D

  $\frac{7{\mathrm{v}}_0}{6}$ in backward direction