A spinning figure skater who brings their arms close in to their body will then spin faster. The stick person figure skater we're looking at has a mass of M 50 kg and arms of length R₁ = 0.8 m. The skater originally spins with angular speed w; = 2 radians/second, and has their arms fully extended. At this initial state, the figure skater can be modeled as a hollow cylinder with moment of inertia I = MR²\ When the skater brings their arms in towards their body, they can be modeled as a solid cylinder with radius Rf 0.2 m. O Wi = J² = wf Determine the final angular speed wf of the skater when their arms are tucked in.

A spinning figure skater who brings their arms close in to their body will then spin faster. The stick person figure skater we're looking at has a mass of M 50 kg and arms of length R₁ = 0.8 m. The skater originally spins with angular speed w; = 2 radians/second, and has their arms fully extended. At this initial state, the figure skater can be modeled as a hollow cylinder with moment of inertia I = MR²\ When the skater brings their arms in towards their body, they can be modeled as a solid cylinder with radius Rf 0.2 m. O Wi = J² = wf Determine the final angular speed wf of the skater when their arms are tucked in.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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