A 56.0-kg woman stands at the western rim of a horizontal turntable having a moment of...
A 56.0-kg woman stands at the western 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 counterclockwise (as viewed from above the system) at a constant speed of 1.50 m/s relative to the Earth. Consider the woman–turntable system as motion begins.
(a) In what direction and with what angular speed does the turntable rotate?
magnitude ___ rad/s
direction (clockwise/counterclockwise)
(b) How much chemical energy does the woman's body convert into mechanical energy of the woman–turntable system as the woman sets herself and the turntable into motion?
___ J
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A 56.0-kg woman stands at the western rim of a horizontal
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