A 55.0-kg woman stands at the rim of a horizontal turntable having a moment of inertia of 520 kg · m2 and a radius of 2.00 m. The turntable is initially at rest and is free to rotate about a frictionlessvertical axle through its center. The woman then starts walking around the rim clockyise (as viewed from above the system) at a constant speed of 1.50 m/s relative to the Earth.(a) In what direction does the turntable rotate?O counterclockwiseO clockwiseWith what angular speed does the turntable rotate?rad/s(b) How much work does the woman do to set herself and the turntable into motion?Need Help?Master ItRead It

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-55.0-kg woman stands at the rim of a horizontal turntable having a ertical axle through its center. The woman then starts walking aroun

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter8: Rotational Equilibrium And Rotational Dynamics

Section: Chapter Questions

Problem 60P: A 60.0-kg woman stands at the rim of a horizontal turntable having a moment of inertia of 500 kg m2...

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Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

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A 55.0-kg woman stands at the rim of a horizontal turntable having a moment of inertia of 520 kg · m2 and a radius of 2.00 m. The turntable is initially at rest and is free to rotate about a frictionless
vertical axle through its center. The woman then starts walking around the rim clockyise (as viewed from above the system) at a constant speed of 1.50 m/s relative to the Earth.
(a) In what direction does the turntable rotate?
O counterclockwise
O clockwise
With what angular speed does the turntable rotate?
rad/s
(b) How much work does the woman do to set herself and the turntable into motion?
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