A railroad car of mass 2.20 ✕ 104 kg moving at 5.00 m/s collides and couples...

A railroad car of mass 2.20 ✕ 10⁴ kg moving at 5.00 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.

(a) What is the speed of the three coupled cars after the collision?
_________________m/s
(b) How much kinetic energy is lost in the collision?
________________J

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Expert Solution

The answer of this problem is given in the picture uploaded below.

genius_generous answered 1 year ago

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