A 3.00-kg object is fastened to a light spring, with the intervening cord passing over a pulley. The pulley is frictionless, and its inertia may be neglected. The object is released from rest when the spring is unstretched. The ends of a cord hang over the sides of a pulley attached to the ceiling. The left end of the cord is attached to the top of a vertical spring with spring constant k. The bottom of the spring is attached to the flat ground. The right end of the cord is attached to a hanging spherical object with mass 3.00 kg. (a) If the object drops 14.8 cm before stopping, find the spring constant of the spring. N/m (b) If the object drops 14.8 cm before stopping, find the speed of the object when it is 5.20 cm below its starting point.