What are the velocities of mass immediately after impact

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A 1 kg mass A is attached to a support by a cord of length 80 cm, and it is held horizontally, as shown right. After released it swings downward striking the 2 kg mass B which is at rest on a frictionless tabletop. Assuming that the collision is perfectly elastic, what are the velocities of each mass immediately after impact?

Reference no: EM132438806

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