(m1+m2)*V = m1*V1
(1424+1424)*V = 1424*11
2848V = 15,664
V = 5.5 m/s.
A 1424-kg railroad car traveling at a speed of 11 m/s strikes an identical car at rest. If the cars lock together as a result of the collision, what is their common speed (in m/s) afterward?
1 answer