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 speedat 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 timerequired for the rotation? (b) What is the corresponding value of a1?(a) NumberiUnits(b) NumberiUnits

(given) Radius (r) of the disk = 0.25 m Disk is rotating through angle = 1000 rad…

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 -a¡ until it is again at rest. The magnitude of the centripetal acceleration of any portion of the disk is not to exceed 100 m/s². (a) What is the least time required for the rotation? (b) What is the corresponding value of a1? (a) Number Units (b) Number i Units

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 -a¡ until it is again at rest. The magnitude of the centripetal acceleration of any portion of the disk is not to exceed 100 m/s². (a) What is the least time required for the rotation? (b) What is the corresponding value of a1? (a) Number Units (b) Number i Units

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter10: Rotational Motion

Section: Chapter Questions

Problem 11P: A disk 8.00 cm in radius rotates at a constant rate of 1200 rev/min about its central axis....

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