Physics problema block with mass=7.5kg, resting on a floor with which it has a coefficient of friction u=.26,?

a block with mass=7.5kg, resting on a floor with which it has a coefficient of friction u=.26, is pushed against a spring of stiffness constant k=500 n/m so that the spring is compressed a distance x=.42m, then released. Use the fact that the potential energy of the spring is dissipated as frictional work to calculate the distance s which the block moves before it comes to a stop.