2 A grinding wheel powered by electricity is rotating at 70.3 rad/s when it initially undergoes constant angular acceleration of 4.75 rad/s until the electricity is cut off after 12.6 s. From then on, the rotation of the wheel slowed down until it eventually come to a stop. If the wheel has turned a total of 364 rev during the whole course of its motion, what is the magnitude of the angular acceleration of the wheel as it slowed down? 5.58 radians per seconds squared 17.7 radians per seconds squared 8.27 radians per seconds squared 2.16 radians per seconds squared

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
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A grinding wheel powered by electricity is
rotating at 70.3 rad/s when it initially undergoes
constant angular acceleration of 4.75 rad/s
until the electricity is cut off after 12.6 s. From
then on, the rotation of the wheel slowed down
until it eventually come to a stop. If the wheel
has turned a total of 364 rev during the whole
course of its motion, what is the magnitude of
the angular acceleration of the wheel as it
slowed down?
5.58 radians per seconds squared
17.7 radians per seconds squared
8.27 radians per seconds squared
2.16 radians per seconds squared
Transcribed Image Text:2 A grinding wheel powered by electricity is rotating at 70.3 rad/s when it initially undergoes constant angular acceleration of 4.75 rad/s until the electricity is cut off after 12.6 s. From then on, the rotation of the wheel slowed down until it eventually come to a stop. If the wheel has turned a total of 364 rev during the whole course of its motion, what is the magnitude of the angular acceleration of the wheel as it slowed down? 5.58 radians per seconds squared 17.7 radians per seconds squared 8.27 radians per seconds squared 2.16 radians per seconds squared
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