(10%) Problem 10: A block of mass m = 3.5 kg is attached to a spring with spring constant k = 570 N/m. It is initially at rest on an inclined plane that is at an angle of ? = 26° with respect to the horizontal and the coefficient of kinetic friction between the block and the plane is ?k = 0.12. In the initial position, where the spring is compressed by a distance of d = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. Take the initial gravitational energy of the block as zero.