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A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis....

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Physics

A playground merry-go-round has a disk-shaped platform thatrotates with negligible friction about a vertical axis. The diskhas a mass of 200 kg and a radius of 1.6 m. A 34- kg child rides atthe center of the merry-go-round while a playmate sets it turningat 0.15rpm. If the child then walks along a radius to the outeredge of the disk, how fast will the disk be turning? (in rpm - butenter no unit)

Answer & Explanation Solved by verified expert
3.8 Ratings (349 Votes)
Mass of the merrygoround M 200 kgRadius of the merrygoround R 16 mMoment of inertia of the merrygoround II MR22I 2001622I 256 kgm2Mass    See Answer
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