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Unformatted text preview: ging his arms closer to his body. Estimate the skater’s rotational speed
his arms, if heFind: Estimate the skaters rotational speed afterahe retracts his arms, if he started rotating, with
started rotating, with his arms fully extended, at rate of
his arms fully extended, atas uniformω1 = 1rev/s. tInitially, you can model the extended arms as
itially, you can model the extended arms a rate of slender rods hat are
uniform slender rods that are 28 inches long inches in
nd weigh 24 lb each and the torso as a 124 lb cylinder, 18and weigh 24 lb each and the torso as a 124 lb cylinder,
18 inches in diameter. be modeled as are retracted, the
his arms are retracted, the skater can After his arms a solid cylinder 18skater can be modeled as a solid cylinder
18 inches
ter and weighing 172 lb. in diameter and weighing 172 lb. V20
Body Kinetics Homework Problems Problem V.18 Chapter V: Rigid Body Kinetics Homework
ME 274 blem V18 Given: The slender bar, shown below, of mass m and length L has a downward velocity vG at
the instant shown. Assume t...
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 Spring '09

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