A disk, initially rotating at 112 rad/s, is slowed down with a constant angular acceleration of magnitude 3.58 rad/s?. (a) How much time does the disk take to stop? (b) Through what angle (rad) does the disk rotate during that time? (a) Number i Units (b) Number i Units

A disk, initially rotating at 112 rad/s, is slowed down with a constant angular acceleration of magnitude 3.58 rad/s?. (a) How much time does the disk take to stop? (b) Through what angle (rad) does the disk rotate during that time? (a) Number i Units (b) Number i Units

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 5CQ: If a rigid body has a constant angular acceleration, what is the functional form of the angular...

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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, initially rotating at 112 rad/s, is slowed down with a constant angular acceleration of magnitude 3.58
rad/s?. (a) How much time does the disk take to stop? (b) Through what angle (rad) does the disk rotate
during that time?
(a) Number
i
Units
(b) Number
i
Units

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