During the launch from a board, a diver's angular speed about her center of mass changes from

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During the launch from a board, a diver's angular speed about her center of mass changes from zero to 6.20 rad/s in 220ms. Her rotational inertia about her center of mass is 12.0 kg-m2. During the launch, what are the magnitudes of

(a) Her average angular acceleration and

(b) The average external torque on her from the board?

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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