The angular acceleration of a disk which rotates about a fixed axis is given by a = –k w, where the constant k = 0.5 sec-1. If the initial angular velocity of the disk is 400 rad/sec at time t = 0, determine its angular velocity:(a) after 9 seconds and,(b) after 9 revolutions.

The angular acceleration of a disk which rotates about a fixed axis is given by a = –k w, where the constant k = 0.5 sec-1. If the initial angular velocity of the disk is 400 rad/sec at time t = 0, determine its angular velocity:(a) after 9 seconds and,(b) after 9 revolutions.

Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)

5th Edition

ISBN:9781305084766

Author:Saeed Moaveni

Publisher:Saeed Moaveni

Chapter8: Time And Time-related Variables In Engineering

Section: Chapter Questions

Problem 29P

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