2. A simple friction drive consists of two disks A and B. Initially, disk B has a clockwise angular velocity of 500 rpm, and disk A is at rest. It is known that disk Bwill coast to rest in 60 s. However, rather than waiting until both disks are at rest to bring them together, disk A is given a constant angular acceleration of 3 rad/s2 counterclockwise. Determine (a) at what time the disks can be brought together if they are not to slip, (b) the angular velocity of each disk as contact is made. B

2. A simple friction drive consists of two disks A and B. Initially, disk B has a clockwise angular velocity of 500 rpm, and disk A is at rest. It is known that disk Bwill coast to rest in 60 s. However, rather than waiting until both disks are at rest to bring them together, disk A is given a constant angular acceleration of 3 rad/s2 counterclockwise. Determine (a) at what time the disks can be brought together if they are not to slip, (b) the angular velocity of each disk as contact is made. B

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

2. A simple friction drive consists of two disks A and B. Initially, disk B has a clockwise
angular velocity of 500 rpm, and disk A is at rest. It is known that disk B will coast to
rest in 60 s. However, rather than waiting until both disks are at rest to bring them
together, disk A is given a constant angular acceleration of 3 rad/s2 counterclockwise.
Determine (a) at what time the disks can be brought together if they are not to
slip, (b) the angular velocity of each disk as contact is made.
A.
2.5 in.
3 in.

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