Car C of mass 3.0 x 103 kilogram is traveling at 50 m/s. It approaches car D of mass 2.0 x 103 kilogram going 30 m/s in the similar direction and strikes it in the rear. Neither driver applies the brakes. Ignore the frictional forces on the cars due to the road and due to air resistance.
A. If the collision slows Car C down to 40 m/s, find what is the speed of Car D after the collision?
B. During the collision, determine which car exerts a larger force on the other, or are the forces equal in magnitude? Explain.