1. (10 points) A collision occurs between a 6 kg object traveling with v = (-3 - 2) m/s and 2 kg object traveling with v = (5 - 4) m/s. After the collision, objects stick and move together. What is their common velocity in unit vector notation? Answer: 2. (10 points) An impulse of] = 6 + 12 (kg.m/s) is applied to an object of mass 2 kg, moving with an initial velocity of V = 31 - 4k. Find the final velocity of the object. Answer: 3. (10 points) A ball with mass m is traveling at a speed of VA. After head-on collision, it sticks to a second ball with mass me traveling at a speed of UB in the opposite direction. What is their common speed immediately after the collision? Answer: (1) (II) VA = 5 m/s A mA = 4 kg Ug = 3 m/s B mg = 6 kg