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.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 113AP: Calculate the moment of inertia of a skater given the following information. (a) The 60.0-kg skater...

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