College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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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 w…
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t2.3 -- BOTH ANSWER MUST BE IN 3RD SIGNI. DIGIT PLS

A disk, initially rotating at 138 rad/s, is slowed down with a constant angular acceleration of magnitude 3.10 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 Units (b) Number i Units rad rad/s Save for Later rad/s^2 Submit Answer kg-m^2 Not graded N•m PRACTICE ONLY kg-m^2/s rad^2/s^2
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Transcribed Image Text:A disk, initially rotating at 138 rad/s, is slowed down with a constant angular acceleration of magnitude 3.10 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 Units (b) Number i Units rad rad/s Save for Later rad/s^2 Submit Answer kg-m^2 Not graded N•m PRACTICE ONLY kg-m^2/s rad^2/s^2
bat5e-33UI This answer has no units narly Nxl E ° (degrees) m kg m/s m/s^2 N N/m kg-m/s or N-s N/m^2 or Pa kg/m^3 on of magnitu it time? m/s^3 times > >
expand button
Transcribed Image Text:bat5e-33UI This answer has no units narly Nxl E ° (degrees) m kg m/s m/s^2 N N/m kg-m/s or N-s N/m^2 or Pa kg/m^3 on of magnitu it time? m/s^3 times > >
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