Kinetic energy is lost in the collision

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Reference no: EM13672100

A railroad car of mass 3.5*10⁴ kg moving at 4.00 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.

1) How much kinetic energy is lost in the collision?

2) What is the speed of the three coupled cars after the collision?

Reference no: EM13672100

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