A 1200 kg car is traveling initially with a speed of 25.0 m/sin an easterly direction crashes into the rear end of a 9000kg truck moving in the same direction at 20.0 m/s. The velocity of thecar right after the collision is 18.0 m/s to the east.
a) What is the velocity of the truck right after the collision?
b) How much mechanical energy is lost in the collision?Account for this loss in energy.