One dimensional collision
A 1200kg car traveling initially at 25m/s in an eastern direction crashed into the back of a 9000kg truck moving at the same direction at 20m/s. The velocity of the car immediately after the collision is 18m/s to east
A. Find the velocity of the truck immediately after the collision.
B. What is the change in mechanical energy of the car-truck system in the collision. [email_link]