Starting from rest, a disk rotates about its central axis with constant angular acceleration. In 5.00 s, it rotates 20 rad. What is the angular acceleration of the disk? O 15 radis2 O 1.6 radis? O 1.8 radis? O 14 radis?
Starting from rest, a disk rotates about its central axis with constant angular acceleration. In 5.00 s, it rotates 20 rad. What is the angular acceleration of the disk? O 15 radis2 O 1.6 radis? O 1.8 radis? O 14 radis?
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 110AP: With the aid of a string, a gyroscope is accelerated from rest to 32 rad/s in 0.40 s under a...
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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.
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![Starting from rest, a disk rotates about its central axis with constant angular acceleration. In 5.00 s, it rotates 20 rad. What is the angular acceleration of the
disk?
O 1.5 rad/s?
O 1.6 rad/s?
O 1.8 rad/s?
O 1.4 rad/s?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff83daded-19a6-443b-bfab-cc9c048c0357%2F61f45ee3-bdfd-4b7c-9ed5-f391ac499568%2Ficq09or_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Starting from rest, a disk rotates about its central axis with constant angular acceleration. In 5.00 s, it rotates 20 rad. What is the angular acceleration of the
disk?
O 1.5 rad/s?
O 1.6 rad/s?
O 1.8 rad/s?
O 1.4 rad/s?
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