The 5-Mg truck and 2-Mg car are traveling with the tree-rolling velocities shown just befo...

The 5-Mg truck and 2-Mg car are traveling with the tree-rolling velocities shown just before they collide. After the collision, the car moves with a velocity of 15 km/h to The right relative to the truck. Determine the coefficient of restitution between the truck and car and the loss of energy due to the collision.