Question

A 65.0-kg woman stands at the rim of a horizontal turntable having a moment of inertia of 460 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 clockwise (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?
**clockwise or counterclockwise**

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? Incorrect: Your answer is incorrect.
Calculate the work done using the final energies and the
work-energy theorem. **J**

Answer #1

A 55.0-kg woman stands at the rim of a horizontal turntable
having a moment of inertia of 420 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 clockwise (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?...

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system) at a constant speed of 1.5 m/s relative to the Earth.
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