Three carts of masses m1 450 kg m2 1200 kg and m3 300 kg, Ask an Expert

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Three carts of masses m1 = 4.50 kg, m2 = 12.00 kg, and m3 = 3.00 kg move on a frictionless, horizontal track with speeds of v1 = 4.50 m/s to the right, v2 = 3.00 m/s to the right, and v3 = 6.00 m/s to the left, as shown below. Velcro couplers make the carts stick together after colliding.

(a) Find the final velocity of the train of three carts. magnitude Your response differs from the correct answer by more than 100%. m/s direction

(b) Does your answer require that all the carts collide and stick together at the same moment? Yes No What if they collide in a different order?

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