An vinyl record of radius 15 cm rotates on a turntable at 33 rpm. When the motor stops friction slows down the turntable and record with a constant angular acceleration of magnitude 30. rad/s². (a) What is the value of the initial speed in units of rad/s? (b) How long does it take for the record to come to a complete stop? (c) How long does it take for the record to complete one full turn after the motor stops?

An vinyl record of radius 15 cm rotates on a turntable at 33 rpm. When the motor stops friction slows down the turntable and record with a constant angular acceleration of magnitude 30. rad/s². (a) What is the value of the initial speed in units of rad/s? (b) How long does it take for the record to come to a complete stop? (c) How long does it take for the record to complete one full turn after the motor stops?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter12: Rotation I: Kinematics And Dynamics

Section: Chapter Questions

Problem 28PQ

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