A railroad car of mass 2.45 104 kg is moving with a speed of 3.96 m/s. It collides and couples with three other coupled railroad cars, each of the same mass as the single car and moving in the same direction with an initial speed of 1.98 m/s. (a) What is the speed of the four cars after the collision
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Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?
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A railroad car of mass 2.45 104 kg is moving with a speed of 3.96 m/s. It collides and couples with...
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