A train car (Car A) of mass 1,150.0 kg is rolling to the right at a velocity 2.4 m/s and collides with a second train car (Car B) of mass 5,750.0 moving with a velocity -1.2 m/s. Cars A and B lock together and move as a single car afterwards. What is their mutual velocity after the collision?

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We can solve this problem using the principle of conservation of momentum which states that the tota... View the full answer