Part A On a cold winter day, a penny (mass 2.50 g) and a The coins collide elastically; calculate the magnitude of the velocity for each coin. nickel (mass 5.00 g) are lying on the smooth (frictionless) surface of a frozen lake. With your Express your answers in meters per second separated by a comma. finger, you flick the penny toward the nickel with a speed of 2.15 m/s. AEd O ? "penny, Vnickel = m/s, m/s Submit Request Answer Part B What are the directions of their final velocities? Select all that apply. The penny is moving away from you. The penny is moving back toward you. The nickle is moving away from you. O The nickle is moving back toward you