An automatic dryer spins wet clothes at an angular speed of 4.2 rad/s. Starting from rest, the dryer reaches its operating speed with an average angular acceleration of 3.5 rad/s². How long does it take the dryer to come up to speed?
An automatic dryer spins wet clothes at an angular speed of 4.2 rad/s. Starting from rest, the dryer reaches its operating speed with an average angular acceleration of 3.5 rad/s². How long does it take the dryer to come up to speed?
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 1CQ: (a) What is the angular speed of the second hand of a clock? (b) What is the direction of as you...
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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.
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