A railroad car of mass 254 x 104 kilogram is moving with a, Physics

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A railroad car of mass 254 x 104 kilogram is moving with a

A railroad car of mass 2.54 x 104 kilogram is moving with a speed of 3.88 m/s. It collides and couples with three other coupled railroad cars, each of the similar mass as the single car and moving in the similar direction with an initial speed of 1.94 m/s.

(a) Obtain the speed of the four cars after the collision?

m/s

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

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Physics: A railroad car of mass 254 x 104 kilogram is moving with a

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Physics: A railroad car of mass 254 x 104 kilogram is moving with a

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