A block B is pushed momentarily along a horizontal surface with an initial velocity v. If $\mu$ is the coefficient of sliding friction between B and the surface, block B will come to rest after time <img src = ""/>:-

Question

( A ) $\frac{v}{g}$
( B ) $\frac{g}{v}$
( C ) $\frac{v}{g \mu}$
( D ) $\frac{g \mu}{v}$