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July 30, 2014

Homework Help: Physics

Posted by Jordan on Friday, May 6, 2011 at 12:19pm.

1. A certain playground merry-go-round is essentially an 90-kg iron disk 2.0 m in radius. Two children, each with a mass of 46 kg, are originally standing on opposite sides of the disk near its outer edge. The merry-go-round is turning essentially without friction about a vertical axis once every 5 s. The children then clamber toward each other so that they are only 1.2 m from the center. What is its angular velocity now? (You do not need to specify its direction.)

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