A steel ball of mass 0.500 kg is fastened to a cord that is 60.0 cm long and fixed at the far end. The ball is then released when the cord is horizontal as shown. At the bottom of its path, the ball strikes a 3.50 kg steel block initially at rest on a frictionless surface. The collision is elastic. Find the velocities (both magnitude and direction) of the ball and the block just after the collision. Assume no friction is involved.