A figure skater is spinning at 10.8 rad/s with her arms extended. Her rotational inertia is 2.50 kg·m2. After pulling her arms in, her rotational inertia is 1.92 kg·m2. How much work does she do to pull her arms in while spinning?
A figure skater is spinning at 10.8 rad/s with her arms extended. Her rotational inertia is 2.50 kg·m2. After pulling her arms in, her rotational inertia is 1.92 kg·m2. How much work does she do to pull her arms in while spinning?
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter12: Rotation I: Kinematics And Dynamics
Section: Chapter Questions
Problem 74PQ
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A figure skater is spinning at 10.8 rad/s with her arms extended. Her rotational inertia is 2.50 kg·m2. After pulling her arms in, her rotational inertia is 1.92 kg·m2. How much work does she do to pull her arms in while spinning?
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