A rotating object's angular position is given by 8(t) = (1.10t²7.55t+3.05) rad, where t is measured in seconds. (a) When is the object momentarily at rest? S (b) What is the magnitude of the angular acceleration at that time? rad/s2
A rotating object's angular position is given by 8(t) = (1.10t²7.55t+3.05) rad, where t is measured in seconds. (a) When is the object momentarily at rest? S (b) What is the magnitude of the angular acceleration at that time? rad/s2
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter12: Rotation I: Kinematics And Dynamics
Section: Chapter Questions
Problem 7PQ: A rotating objects angular position is given by (t) = (1.54t2 7.65t + 2.75) rad, where t is...
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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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Please answer the problem and give what is ask. Then show your solution and box the final answer.
![A rotating object's angular position is given by 8(t) = (1.10t27.55t +3.05) rad, where t is measured in seconds.
(a) When is the object momentarily at rest?
S
(b) What is the magnitude of the angular acceleration at that time?
rad/s2
K](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4dd1a0a8-7572-4bd7-8cb5-9f9b5c7a2269%2F630408e8-1b32-4c7d-8f57-0a98a03cc34e%2Fzpi6qba_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A rotating object's angular position is given by 8(t) = (1.10t27.55t +3.05) rad, where t is measured in seconds.
(a) When is the object momentarily at rest?
S
(b) What is the magnitude of the angular acceleration at that time?
rad/s2
K
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