A train, A, with a mass of 19,000 kg is travelling at 90 km/hwhen it strikes a second train, B, which has a mass of 17,000 kgand is moving in the same direction at a speed of 43.2 km/h. If thecoefficient of restitution for the collision is 0.87 and allresistances to motion are negligible, then
(i) calculate the speed of the trains A and B immediately afterthe impact.
(ii) as a result of damage during the collision trains A and Bhave a constant friction resistance to the motion of 14,500 N.Calculate the distance that the train B will move before coming torest.
