A figure skater begins to spin in an angular speed w about a vertical axis with her arms outstretched. Without applying any torque, she pulls her arms in so that her rotational inertia decreases by a factor of 2. Her new angular speed isA. w / sqrt 2B. w / 2C. sqrt 2 wD. 2 w WHAT DO YOU THINK? QUICKCHECKIA figure skater begins to spin in an angular speed wabout a vertical axis with her arms outstretched. Withoutapplying any torque, she pulls her arms in so that herrotational inertia decreases by a factor of 2. Her newangular speed isA.V2C. V2wD. 2wO 2015 Peersen Education, Inc.B.

Given : Initial angular speed of the skater = ω Initial Moment of inertia of the skater = I Final…

Answered: A figure skater begins to spin in an…

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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A figure skater begins to spin in an angular speed w about a vertical axis with her arms outstretched. Without applying any torque, she pulls her arms in so that her rotational inertia decreases by a factor of 2. Her new angular speed is A. w / sqrt 2 B. w / 2 C. sqrt 2 w D. 2 w

WHAT DO YOU THINK? QUICKCHECKI
A figure skater begins to spin in an angular speed w
about a vertical axis with her arms outstretched. Without
applying any torque, she pulls her arms in so that her
rotational inertia decreases by a factor of 2. Her new
angular speed is
A.
V2
C. V2w
D. 2w
O 2015 Peersen Education, Inc.
B.

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