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The 20-lb disk is rigidly attached to the 7-lb bar OA, which is pivoted freely about a horizontal axis through point O. If the system is released from rest in the position shown, determine the angular velocity w of the bar and the magnitude R of the pin reaction at O after the bar has rotated 90° OA = 21"

The 20-lb disk is rigidly attached to the 7-lb bar OA, which is pivoted freely about a horizontal axis through point O. If the system is released from rest in the position shown, determine the angular velocity w of the bar and the magnitude R of the pin reaction at O after the bar has rotated 90° OA = 21"

Structural Analysis
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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x Incorrect The 20-lb disk is rigidly attached to the 7-lb bar OA, which is pivoted freely about a horizontal axis through point O. If the system is released from rest in the position shown, determine the angular velocity w of the bar and the magnitude R of the pin reaction at o after the bar has rotated 90 OA = 21" Answers: 7.81 rad/s R= 104.97 Ib
Transcribed Image Text:x Incorrect The 20-lb disk is rigidly attached to the 7-lb bar OA, which is pivoted freely about a horizontal axis through point O. If the system is released from rest in the position shown, determine the angular velocity w of the bar and the magnitude R of the pin reaction at o after the bar has rotated 90 OA = 21" Answers: 7.81 rad/s R= 104.97 Ib
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