(8.71) An ice skater spinning with outstretched arms has an angular speed of 5.0 rad/s. She tucks in her arms, decreasing her moment of inertia by 21% What is the resulting angular speed? By what factor does the skater's kinetic energy change? (Neglect any frictional effects.)
(8.71) An ice skater spinning with outstretched arms has an angular speed of 5.0 rad/s. She tucks in her arms, decreasing her moment of inertia by 21% What is the resulting angular speed? By what factor does the skater's kinetic energy change? (Neglect any frictional effects.)
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter11: Angular Momentum
Section: Chapter Questions
Problem 54P: A cylinder with rotational inertia I1=2.0kgm2 rotates clockwise about a vertical axis through its...
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