Physics, 21.04.2020 21:53, tyreannag7696

A merry-go-round of radius 2.74 m and a moment of inertia of 340 kgm2 rotates without friction. It makes 1 revolution every 4.00 s. A child of mass 25.0 kg sitting at the center crawls out to the rim. Find (a) the new angular speed of the merry-go-round, and (b) the kinetic energy change during this process.

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A merry-go-round of radius 2.74 m and a moment of inertia of 340 kgm2 rotates without friction. It...