C. Object A of mass 10kg moving at 10 m/s [E] collides off-center with Object B of mass 10 kg at rest. 1. If the collision is completely inelastic, what is the final velocity of object B? 2. If the collision is elastic, what is the "shortcut" that links final velocities of the two objects? 3. If the collision is elastic and the final velocity of object B is 5.0 m/s, what is the final velocity of object A? 4. If the mass of object B is 10kg, what is the minimum possible kinetic energy of the system after the collision