A rotating disk is initially spinning at w 7.4 rev/s, slows down and stops in 11.6 s. What is the magnitude of the disk's average angular acceleration? (in rev/s^2) 1.28 .a O 42.92 .b O 0.64.c O 0.64-.d O

A rotating disk is initially spinning at w 7.4 rev/s, slows down and stops in 11.6 s. What is the magnitude of the disk's average angular acceleration? (in rev/s^2) 1.28 .a O 42.92 .b O 0.64.c O 0.64-.d O

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 49P: A wind turbine is rotating conterclockwise at 0.5 rev/s and slows to a stop in 10 s. Its blades are...

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Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

Question

A rotating disk is initially spinning at w 7.4 rev/s, slows down and stops in 11.6 s. What is the magnitude of the disk's
average angular acceleration? (in rev/s^2)
1.28 .a O
42.92 .b O
0.64.c O
0.64-.d O

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