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A 65 kg woman stands at the rim of a horizontal turntable having a moment of...

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Physics

A 65 kg woman stands at the rim of a horizontal turntable havinga moment of inertia of 520 kg·m2 and a radius of 2.0 m.The turntable is initially at rest and is free to rotate about africtionless vertical axle through its center. The woman thenstarts walking around the rim clockwise (as viewed from above thesystem) at a constant speed of 1.5 m/s relative to the Earth.

(a) In what direction and with what angular speed does theturntable rotate?

counterclockwise clockwise    


2 rad/s

(b) How much work does the woman do to set herself and theturntable into motion?
3 J

Answer & Explanation Solved by verified expert
4.1 Ratings (734 Votes)
Set the initial angular momentum of the system equal to the final angular momentum of the system Call the angular momentum of the turntable L and that of    See Answer
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