Rotational momentum
A student sits motionless on a stool that can turn friction free about its vertical axis (total rotational inertia I). The student is handed a spinning bicycle wheel, with rotational inertia I wheel, that is spinning about a vertical axis with a counterclockwise rotational velocity w0. The student then turns the bicycle wheel over (that is, through 180°). Estimate, in terms of w0, the final rotational velocity acquired by the student.
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