6. A flywheel is making 180 r.p.m. and after 20 seconds it is running at 140 r.p.m. How many revolu- tions will it make, and what time will elapse before it stops, if the retardation is uniform ? [ Ans. 135 rev. ; 90 s]
6. A flywheel is making 180 r.p.m. and after 20 seconds it is running at 140 r.p.m. How many revolu- tions will it make, and what time will elapse before it stops, if the retardation is uniform ? [ Ans. 135 rev. ; 90 s]
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Question
![6.
A flywheel is making 180 r.p.m. and after 20 seconds it is running at 140 r.p.m. How many revolu-
tions will it make, and what time will elapse before it stops, if the retardation is uniform ?
[ Ans. 135 rev. ; 90 s]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2bc37ae1-0e8b-4885-9dbe-cfe9e4898598%2F3bbc94ee-e246-4074-a333-a7bf61b5ec5f%2F5qoftaj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:6.
A flywheel is making 180 r.p.m. and after 20 seconds it is running at 140 r.p.m. How many revolu-
tions will it make, and what time will elapse before it stops, if the retardation is uniform ?
[ Ans. 135 rev. ; 90 s]
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