In a classroom demonstration a student sits on a stool and holds 5 kg masses in each hand as he rotates with the stool and weights about a vertical axis. With his arms outstretched, as shown, he rotates at 0.25 rev/s. When he brings the weights in near the axis of rotation he rotates at 1.0 rev/s. Regarding the stool, the weights, and the student as a single system, what is the ratio of the system's final moment of inertia, Ienal to its initial moment of inertia, Imia? (The initial configuration is with his arms outstretched.) O Ianat /Inial - 1/4 O lenal/ntial - 16 O Ia/Inrial = 1/16 O Ianal/ntia-4 O lenal /Intial = 1/3

In a classroom demonstration a student sits on a stool and holds 5 kg masses in each hand as he rotates with the stool and weights about a vertical axis. With his arms outstretched, as shown, he rotates at 0.25 rev/s. When he brings the weights in near the axis of rotation he rotates at 1.0 rev/s. Regarding the stool, the weights, and the student as a single system, what is the ratio of the system's final moment of inertia, Ienal to its initial moment of inertia, Imia? (The initial configuration is with his arms outstretched.) O Ianat /Inial - 1/4 O lenal/ntial - 16 O Ia/Inrial = 1/16 O Ianal/ntia-4 O lenal /Intial = 1/3

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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