3. (T) A 1.0 kg red super-ball moving at 5.0 m/s collides head-on with stationary blue super-ball of mass 4.0 kg in an elastic collision. What are the final velocities of the two super-balls after the collision? 4. (A) A 1375 kg car is heading East at 19 m/s when it collides head-on with a 1650 kg truck that is moving at 11 m/s West. The two vehicles become entwined (stuck together) after the collision. a. What is the final velocity of the two vehicles after the collision? b. What this collision elastic or inelastic? Explain briefly