Two cars one of mass 1500 kg and the second of mass 2200, Ask an Expert

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Two cars, one of mass 1500 kg, and the second of mass 2200 kg, are moving at right angles to each other when they collide and stick together. The initial velocity of the first car is 11 m/s in the positive x direction and that of the second car is 20 m/s in the positive y direction. What is the magnitude of the velocity of the wreckage of the two cars immediately after the collision?

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