A discus thrower accelerates a discus from rest to a speed of 25.1 m/s by whirling it through 1.28 rev. Assume the discus moves on the arc of a circle 1.05 m in radius. Adrian Dennis/AFP/Getty Images (a) Calculate the final angular speed of the discus. 24 rad/s (b) Determine the magnitude of the angular acceleration of the discus, assuming it to be constant. 37.28 rad/s² (c) Calculate the time interval required for the discus to accelerate from rest to 25.1 m/s. .643 S Need Hel

A discus thrower accelerates a discus from rest to a speed of 25.1 m/s by whirling it through 1.28 rev. Assume the discus moves on the arc of a circle 1.05 m in radius. Adrian Dennis/AFP/Getty Images (a) Calculate the final angular speed of the discus. 24 rad/s (b) Determine the magnitude of the angular acceleration of the discus, assuming it to be constant. 37.28 rad/s² (c) Calculate the time interval required for the discus to accelerate from rest to 25.1 m/s. .643 S Need Hel

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 29P: A track star runs a 400-m race on a 400-m circular track in 45 s. What is his angular velocity...

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