FUNDAMENTALS OF PHYSICS - EXTENDED
12th Edition
ISBN: 9781119773511
Author: Halliday
Publisher: WILEY
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Chapter 10, Problem 31P
GO A disk, with a radius of 0.25 m. is to be rotated like a merry-go-round through 800 rad, starting from rest, gaining angular speed at the constant rate α1 through the first 400 rad and then losing angular speed at the constant rate −α1 until it is again at rest. The magnitude of the centripetal acceleration of any portion of the disk is not to exceed 400 m/s2. (a) What is the least time required for the rotation? (b) What is the corresponding value of α1?
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A disk, with a radius of 0.25 m, is to be rotated like a merry-go-round through 1000 rad, starting from rest, gaining angular speed
at the constant rate aj through the first 500 rad and then losing angular speed at the constant rate -aj until it is again at rest.
The magnitude of the centripetal acceleration of any portion of the disk is not to exceed 100 m/s?. (a) What is the least time
required for the rotation? (b) What is the corresponding value of a1?
(a) Number
i
Units
(b) Number
i
Units
A disk, with a radius of 0.25 m, is to be rotated like a merry-go-round through 200 rad, starting from rest, gaining angular speed at the
constant rate aj through the first 100 rad and then losing angular speed at the constant rate - aj until it is again at rest. The
magnitude of the centripetal acceleration of any portion of the disk is not to exceed 400 m/s². (a) What is the least time required for
the rotation? (b) What is the corresponding value of a1?
(a) Number
10
Units
(b) Number
8
Units
rad/s^2
Chapter 10 Solutions
FUNDAMENTALS OF PHYSICS - EXTENDED
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