Answered: A porters wheel is spinning with an…

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter8: Rotational Equilibrium And Rotational Dynamics

Section: Chapter Questions

Problem 3WUE

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Question

A porters wheel is spinning with an initial velocity of 14 rad/s . It rotates through an angle of 75.0 rad in the process of coming to rest

A.) what was the angular acceleration of the wheel express your answer RADIANS PER SECOND SQUARED

b.) how long does it take to come to restEXPRESS ANSWER IN SECONDS

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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