Two disks are mounted (like a merry-go-round) on low-friction bearings on the same axle and can be brought together so that they couple and rotate as one unit. The first disk, with rotational inertia 3.50 kg • m? about its central axis, is set spinning counterclockwise at 250 rev/min. The second disk, with rotational inertia 5.00 kg · m2 about its central axis, is set spinning counterclockwise at 600 rev/min. They then couple together. (a) What is their angular speed after coupling? rev/min (b) If instead the second disk is set spinning clockwise at 600 rev/min, what is their angular speed after they couple together? rev/min (c) What is their direction of rotation after they couple together? O counterclockwise O clockwise

Two disks are mounted (like a merry-go-round) on low-friction bearings on the same axle and can be brought together so that they couple and rotate as one unit. The first disk, with rotational inertia 3.50 kg • m? about its central axis, is set spinning counterclockwise at 250 rev/min. The second disk, with rotational inertia 5.00 kg · m2 about its central axis, is set spinning counterclockwise at 600 rev/min. They then couple together. (a) What is their angular speed after coupling? rev/min (b) If instead the second disk is set spinning clockwise at 600 rev/min, what is their angular speed after they couple together? rev/min (c) What is their direction of rotation after they couple together? O counterclockwise O clockwise

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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