(b) How much kinetic energy is lost in the collision? J A

Last updated: 7/28/2022

(b) How much kinetic energy is lost in the collision? J A railroad car of mass 2.70 x 104 kg moving 3.35 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s. (a) What is the speed of the three coupled cars after the collision? m/s