A block with mass m = 17.0 kg rests on a frictionless table and is accelerated by a spring with spring constant k = 4304.0 N/m after being compressed a distance x1 = 0.576 m from the spring’s unstretched length. The floor is frictionless except for a rough patch a distance d = 2.4 m long. For this rough path, the coefficient of friction is ?k = 0.46. 1) How much work is done by the spring as it accelerates the block in j and What is the speed of the block right after it leaves the spring?