8) End A of the uniform 15 lb bar is attached to a horizontal rope and end B contacts the floor with negligible friction. 45° 3 ft Knowing that the bar is released from rest in the position shown, determine immediately after release: (a) The angular acceleration of the bar (b) The tension in the rope (c) The reaction at B ANS. a=-11.38k r/s² 7=-5.637 lb Ñ=9.37j lb

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
Question

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8) End A of the uniform 15 lb bar is attached to a horizontal rope and end B contacts the floor with negligible
friction.
45°
3 ft
Knowing that the bar is released from rest in the position shown, determine immediately after release:
(a) The angular acceleration of the bar
(b) The tension in the rope
(c) The reaction at B
ANS.
a=-11.38k r/s² 7=-5.637 lb Ñ=9.37j lb
Transcribed Image Text:8) End A of the uniform 15 lb bar is attached to a horizontal rope and end B contacts the floor with negligible friction. 45° 3 ft Knowing that the bar is released from rest in the position shown, determine immediately after release: (a) The angular acceleration of the bar (b) The tension in the rope (c) The reaction at B ANS. a=-11.38k r/s² 7=-5.637 lb Ñ=9.37j lb
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