A 1,260-kg car traveling initally with a speed of 25.0 m/s in an easterly direction crashes into the rear end of a 9,600-kg truck moving in the same direction at 20.0 m/s. The velocity of the car right after the the collision is 18.0 m/s to the east.
A) what is the velocity of the truck right after the collision.
_________m/s (east)
B) How much mechanical energy is lost in the collision. (Use input values with adequate number of significant figures to calculate this answer.)
___________kJ
C) Account for this loss in energy.