9. A 1.4-kg 15-cm-diameter solid sphere is rotating about its diameter at 70 rev/min. (a) What is its kinetic energy? (b) If an additional 5.0 mJ of energy are added to the kinetic energy, what is the new angular speed of the sphere? 85 mJ, 72 rev/min

9. A 1.4-kg 15-cm-diameter solid sphere is rotating about its diameter at 70 rev/min. (a) What is its kinetic energy? (b) If an additional 5.0 mJ of energy are added to the kinetic energy, what is the new angular speed of the sphere? 85 mJ, 72 rev/min

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter8: Rotational Equilibrium And Dynamics

Section8.5: Rotational Kinetic Energy

Problem 8.4QQ: Two spheres, one hollow and one solid, are rotating with the same angular speed around an axis...

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