A 1250 kg car is stoppde at a traffic. A 3550 kg truck moving at 8.33 m/s strikes the car frome behind, causing the bumpers to lock. (a) What is the momentum of the car-truck system beforethe collision? (b) What is the momentum of the car-truck system after the collision? (C) How fast do the car and truck (locked together) move after the collision?