Physics, 17.12.2021 04:30, Lived

A 3,000-kg railway car is traveling on a level track with a velocity of 8.0 m/s to the right when it collides head-on with another railway car of mass 5,000 kg that is traveling with a velocity equal to 4.0 m/s to the left. When the two cars collide, they couple together via internal hooks that are attached to the colliding faces of each car. What is the velocity of the tandem of cars after the collision

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A 3,000-kg railway car is traveling on a level track with a velocity of 8.0 m/s to the right when it...