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Three children are riding on the edge of a merry‑go‑round that has a mass of 105...

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Physics

Three children are riding on the edge of a merry‑go‑round thathas a mass of 105 kg and a radius of 1.60 m . The merry‑go‑round isspinning at 22.0 rpm. The children have masses of 22.0, 28.0, and33.0 kg. If the 28.0 kg child moves to the center of themerry‑go‑round, what is the new angular velocity in revolutions perminute? Ignore friction, and assume that the merry‑go‑round can betreated as a solid disk and the children as point masses.

final angular velocity: ________ rpm

Answer & Explanation Solved by verified expert
3.7 Ratings (378 Votes)
Mass of the merrygoround M 105 kgRadius of the merrygoround R 16 mMoment of inertia of the merrygoround II MR22I 1051622I 1344 kgm2Mass of the first child m1    See Answer
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