A steel ball of mass 1.0 kg is shot from a spring loaded gun. The gun uses a spring of k = 1000 N/m and it is compressed 10 cm. The 1.0 kg ball then collides with a 2.5 kg ball, resulting in the 2.5 kg ball rolling up a ramp to a maximum height of 5 cm. What is the velocity of each ball immediately after the collision? (Assume a frictionless surface)