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A 54.0-kg woman stands at the western rim of a horizontal turntable having a moment of...

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Physics

A 54.0-kg woman stands at the western rim of ahorizontal turntable having a moment of inertia of490 kg · m2 and a radius of 2.00 m. Theturntable 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 viewedfrom above the system) at a constant speed of 1.50 m/s relative tothe Earth. Consider the woman–turntable system as motionbegins.

(a) Is the mechanical energy of the system constant?

Yes/No

(b) Is the momentum of the system constant?

Yes/No

(c) Is the angular momentum of the system constant?

Yes/No

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

Magnitude: ___ rad/s

Direction: Clockwise/Counterclockwise

(e) How much chemical energy does the woman's body convert intomechanical energy of the woman–turntable system as the woman setsherself and the turntable into motion?
___ J

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