When a $3\mathrm{.}0-$kg block is pushed against a massless spring of force constant $4\mathrm{.}5103$N$/$m$,4\mathrm{.}5103$N$/$m$,$ the spring is compressed $8\mathrm{.}0$ cm$.$ The block is released, and it slides $2\mathrm{.}0$ m $($from the point at which it is released$)$ across a horizontal surface before friction stops it$.$ What is the coefficient of kinetic friction between the block and the surface?