Energy is to be stored in a 86.4 kg flywheel in the shape of a uniform solid disk (1 = ½ mR2) with radius R = 1.25 m. To prevent structural failure of the flywheel, the maximum allowed radial acceleration of a point on its rim is 3500 m/s². What is the maximum kinetic energy that can be stored in the flywheel?

University Physics Volume 1
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Author:William Moebs, Samuel J. Ling, Jeff Sanny
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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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Energy is to be stored in a 86.4 kg flywheel in the shape of a uniform solid disk (1 = 2
mR2) with radius R = 1.25 m. To prevent structural failure of the flywheel, the
maximum allowed radial acceleration of a point on its rim is 3500 m/s². What is the
maximum kinetic energy that can be stored in the flywheel?
67.5 kJ
69.2 kJ
94.5 kJ
96.9 kJ
189 kJ
194 kJ
None of the above
Transcribed Image Text:Energy is to be stored in a 86.4 kg flywheel in the shape of a uniform solid disk (1 = 2 mR2) with radius R = 1.25 m. To prevent structural failure of the flywheel, the maximum allowed radial acceleration of a point on its rim is 3500 m/s². What is the maximum kinetic energy that can be stored in the flywheel? 67.5 kJ 69.2 kJ 94.5 kJ 96.9 kJ 189 kJ 194 kJ None of the above
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