What is the speed of the four cars after the collision

Reference no: EM13496394

A railroad car of mass2.52multiplied by104kg is moving with a speed of3.95m/s. It collides and couples with three other coupled railroad cars, each of the same mass as the single car and moving in the same direction with an initial speed of1.98m/s.

(a) What is the speed of the four cars after the collision?

m/s

(b) How much mechanical energy is lost in the collision?

Reference no: EM13496394

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