Answered: A gyroscope slows from an initial rate…

A gyroscope slows from an initial rate of 58.8 rad/s at a rate of 0.801 rad/s². (a) How long does it take (in s) to come to rest? s (b) How many revolutions does it make before stopping? rev

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter13: Rotation Ii: A Conservation Approach

Section: Chapter Questions

Problem 7PQ: A 12.0-kg solid sphere of radius 1.50 m is being rotated by applying a constant tangential force of...

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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 gyroscope slows from an initial rate of 58.8 rad/s at a rate of 0.801 rad/s².
(a) How long does it take (in s) to come to rest?
S
(b) How many revolutions does it make before stopping?
rev

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