Answered: a) Convert the following angles from…

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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a) Convert the following angles from degrees to radians: 15°, 35°, 80°, 95°, 180°
b) Convert the following angles from radians to degrees: 0, π/6, 1.2π, 3, 6
c) A propeller blade with a diameter of 5 m has an initial angular velocity of 42 rad/s and a constant angular acceleration of -15 rad/s2. What is the angular velocity after 5 revolutions? How much time does it take to complete these 5 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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