Find what is the speed of the four cars after the collision

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Reference no: EM13653704

A railroad car of mass 2.50 104 kg, is moving with aspeed of 4.09 m/s. Itcollides and couples with three other coupled railroad cars, eachof the same mass as the single car and moving in the same directionwith an initial speed of 2.05 m/s.

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

(b) How much energy is transformed into internal energy in the collision?

Reference no: EM13653704

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