A rotating platform of radius R = 2.7 cm starts from rest and accelerates with uniform angular acceleration a = 34 rad/s². Randomized Variables R=2.7 cm a = 34 rad/s² Part (a) Write an expression that gives the centripetal acceleration on the edge of the platform as a function of time, ac(t). Part (b) Write an expression for the time at which the magnitudes of the centripetal and tangential accelerations at the edge will be equal. Part (c) Calculate the time, t in seconds, for when the magnitudes of the centripetal and tangential accelerations are equal.

Principles of Physics: A Calculus-Based Text
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ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
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Chapter10: Rotational Motion
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Problem 10P: A wheel 2.00 m in diameter lies in a vertical plane and rotates about its central axis with a...
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A rotating platform of radius R = 2.7 cm starts from rest and accelerates with uniform angular acceleration a = 34 rad/s².
Randomized Variables
R=2.7 cm
a = 34 rad/s²
Part (a) Write an expression that gives the centripetal acceleration on the edge of the platform as a function of time, ac(t).
Part (b) Write an expression for the time at which the magnitudes of the centripetal and tangential accelerations at the edge will be equal.
Part (c) Calculate the time, t in seconds, for when the magnitudes of the centripetal and tangential accelerations are equal.
Transcribed Image Text:A rotating platform of radius R = 2.7 cm starts from rest and accelerates with uniform angular acceleration a = 34 rad/s². Randomized Variables R=2.7 cm a = 34 rad/s² Part (a) Write an expression that gives the centripetal acceleration on the edge of the platform as a function of time, ac(t). Part (b) Write an expression for the time at which the magnitudes of the centripetal and tangential accelerations at the edge will be equal. Part (c) Calculate the time, t in seconds, for when the magnitudes of the centripetal and tangential accelerations are equal.
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