How fast will the disk be turning

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Reference no: EM13255229

A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis. The disk has a mass of 200 kg and a radius of 1.9 m. A 42- kg child rides at the center of the merry-go-round while a playmate sets it turning at 0.40rpm. If the child then walks along a radius to the outer edge of the disk, how fast will the disk be turning?

Reference no: EM13255229

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