The angular position of a point on a rotating wheel is given by θ = 8.41 + 8.45t2 + 3.81t3, where θ is in radians and t is in seconds.(d)Calculate its angular acceleration at t = 2.38 s.(e)Is its angular acceleration constant?

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Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter10: Rotational Motion

Section: Chapter Questions

Problem 1P: During a certain time interval, the angular position of a swinging door is described by = 5.00 +...

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The angular position of a point on a rotating wheel is given by θ = 8.41 + 8.45t² + 3.81t³, where θ is in radians and t is in seconds.

(d)Calculate its angular acceleration at t = 2.38 s.

(e)Is its angular acceleration constant?

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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