A disk rotates about its central axis starting from rest and accelerates with constant angular acceleration. At one time it is rotatingat 11.0 rev/s; 30.0 revolutions later, its angular speed is 25.0 rev/s. Calculate la) the angular acceleration (rev/s1. (b) the tirnerequired to complete the 30.0 revolutions, (c) the time required to reach the 11.0 rev/s angular speed, and (d) the number ofrevolutions from rest until the time the disk reaches the 11.0 rev/s angular speed.ja) NumberUnitįb) NumberUnit(c) NumberUnit(d) NumberUnit

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A disk rotates about its central axis starting from rest and accelerates with constant angular acceleration. At one time it is rotating at 11.0 rev/s; 30.0 revolutions later, its angular speed is 25.0 rev/s. Calculate (a) the angular acceleration (rev/s). (b) the time required to complete the 30.0 revolutions, (c) the time required to reach the 11.0 rev/s angular speed, and (d) the nurmber of revolutions from rest until the time the diskreaches the 11.0 revis angular speed. ja) Number Unit (b) Number Unit (c) Number Unit (d) Number Unit

A disk rotates about its central axis starting from rest and accelerates with constant angular acceleration. At one time it is rotating at 11.0 rev/s; 30.0 revolutions later, its angular speed is 25.0 rev/s. Calculate (a) the angular acceleration (rev/s). (b) the time required to complete the 30.0 revolutions, (c) the time required to reach the 11.0 rev/s angular speed, and (d) the nurmber of revolutions from rest until the time the diskreaches the 11.0 revis angular speed. ja) Number Unit (b) Number Unit (c) Number Unit (d) Number Unit

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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Concept explainers

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.

Question

A disk rotates about its central axis starting from rest and accelerates with constant angular acceleration. At one time it is rotating
at 11.0 rev/s; 30.0 revolutions later, its angular speed is 25.0 rev/s. Calculate la) the angular acceleration (rev/s1. (b) the tirne
required to complete the 30.0 revolutions, (c) the time required to reach the 11.0 rev/s angular speed, and (d) the number of
revolutions from rest until the time the disk reaches the 11.0 rev/s angular speed.
ja) Number
Unit
įb) Number
Unit
(c) Number
Unit
(d) Number
Unit

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