Answered: A. Calculate the angular acceleration…

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter10: Rotation Of A Rigid Object About A Fixed Axis

Section: Chapter Questions

Problem 10.6P: A centrifuge in a medical laboratory rotates at an angular speed of 3 600 rev/min. When switched...

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1. A centrifuge turning at 20,000 rpm is suddenly turned off. Before it comes to a stop, the centrifuge spins for 1,500 revolutions. (Hint: Convert rpm to rad/s)

A. Calculate the angular acceleration of the centrifuge assuming it to be constant.

B. How long would it take for it to stop?

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Definition Definition Rate of change of angular velocity. Angular acceleration indicates how fast the angular velocity changes over time. It is a vector quantity and has both magnitude and direction. Magnitude is represented by the length of the vector and direction is represented by the right-hand thumb rule. An angular acceleration vector will be always perpendicular to the plane of rotation. Angular acceleration is generally denoted by the Greek letter α and its SI unit is rad/s 2 .

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