2. (T) While playing a game of billiards, your 0.50 kg cue ball, travelling at 1.9 mis, glances off a stationary 0.30 kg billiard ball so that the billiard ball moves off at 1.3 mils at an angle of 32 clockwise from the cue ball's original path. What is the nal speed of the cue ball? [3] 3. (T) A 1.0 kg red super-ball moving at 5.0 mils 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