11. A spinning disc starts from rest and reaches an angular velocity of wf = 620 rad/s in 20 seconds. What is the angular acceleration of the disc? At t = 20 s, for a point 0.05 m away from the center, what is the corresponding tangential velocity? c) Sketch a graph of a vs t from t=0 s to t = 20 s. a) b)

11. A spinning disc starts from rest and reaches an angular velocity of wf = 620 rad/s in 20 seconds. What is the angular acceleration of the disc? At t = 20 s, for a point 0.05 m away from the center, what is the corresponding tangential velocity? c) Sketch a graph of a vs t from t=0 s to t = 20 s. a) b)

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 25PQ

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