A railroad car of mass 3.10 ✕ 10^4 kg moving at 3.50 m/s
collides and couples...
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Physics
A railroad car of mass 3.10 ✕ 10^4 kg moving at 3.50 m/scollides and couples with two coupled railroad cars, each of thesame mass as the single car and moving in the same direction at1.20 m/s.
(a) What is the speed of the three coupled cars after thecollision?
__m/s
(b) How much kinetic energy is lost in the collision?
__J
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A railroad car of mass 31104 kg moving at 3500 ms collides and couples with two coupled railroad cars each of the same mass as the single car and moving in the
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