16. Angular Momentum
Conservation of Angular Momentum
9:22 minutes
Problem 11.49d
Textbook Question
Textbook Question(II) Two ice skaters, both of mass 68 kg, approach on parallel paths 1.6 m apart. Both are moving at 3.5 m/s with their arms outstretched. They join hands as they pass, still maintaining their 1.6-m separation, and begin rotating about one another. Treat the skaters as particles with regard to their rotational inertia. They now pull on each other’s hands, reducing their radius to half its original value
(d) Calculate the change in kinetic energy for this process.
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