A mass m rotates at constant speed v at a radius of R from the rotational axis. A force F provides the centripetal force Fo. If you double both, the speed v of the mass and the radius R of the motion, without changing m, the force needed to keep the mass in circular motion would (a) stay the same. (b) double. (c) halve. (d) quadruple.

A mass m rotates at constant speed v at a radius of R from the rotational axis. A force F provides the centripetal force Fo. If you double both, the speed v of the mass and the radius R of the motion, without changing m, the force needed to keep the mass in circular motion would (a) stay the same. (b) double. (c) halve. (d) quadruple.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 124CP: Zorch, an archenemy of Rotation Man, decides to slow Earth’s rotation to once per 28.0 h by exerting...

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