Answered: Just Part B only please, thank you! An…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Just Part B only please, thank you!

An automobile engine slows down from 3800 rpm to 1100 rpm in 2.0 s.

Part A

Calculate its angular acceleration, assumed constant.

Express your answer using two significant figures.

-141.375 rads/s

Part B

Calculate the total number of revolutions the engine makes in this time.

Express your answer as an integer.

N= ____ revolutions

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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