In figure skating, kelen rotated at an angular speed of 9.04 rad/s with her arms pulled in. At the arena, watching her performance, a graduate student calculated that her moment of inertia with arms pulled in was 3.05 kmg^2. After 45 seconds, kelen extends her arms, and her angular speed changed to 4.37 rad/s. What is kelens new moment of inertia?

Principles of Physics: A Calculus-Based Text
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ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter10: Rotational Motion
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In figure skating, kelen rotated at an angular speed of 9.04 rad/s with her arms pulled in. At the arena, watching her performance, a graduate student calculated that her moment of inertia with arms pulled in was 3.05 kmg^2. After 45 seconds, kelen extends her arms, and her angular speed changed to 4.37 rad/s. What is kelens new moment of inertia? 

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