The bar, WA= 100 [lb] and L=3 [ft], shown in figure is initially in the vertical position. The bar is subjected to a couple moment of M-20 [lb-ft] and a force F-50 [lb], which is always perpendicular to the end of bar. Also, the spring is attached to bar at distance L/2 from point A, and has unstretched length of lo=1.2 [ft]. The spring remains in horizontal position throughout the motion due to the roller guide at B. Determine angular velocity of the bar, o [rad/s], when it goes through horizontal position. Spring constant is k=7 [lb/ft]. Distance between point A and vertical guide is d=1.5 [ft].
The bar, WA= 100 [lb] and L=3 [ft], shown in figure is initially in the vertical position. The bar is subjected to a couple moment of M-20 [lb-ft] and a force F-50 [lb], which is always perpendicular to the end of bar. Also, the spring is attached to bar at distance L/2 from point A, and has unstretched length of lo=1.2 [ft]. The spring remains in horizontal position throughout the motion due to the roller guide at B. Determine angular velocity of the bar, o [rad/s], when it goes through horizontal position. Spring constant is k=7 [lb/ft]. Distance between point A and vertical guide is d=1.5 [ft].
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![Determine angular velocity of the bar, [rad/s], when it goes through
horizontal position?
The bar, WA= 100 [lb] and L=3 [ft], shown in figure is initially in the vertical position. The bar is
subjected to a couple moment of M=20 [lb-ft] and a force F=50 [lb], which is always perpendicular to
the end of bar. Also, the spring is attached to bar at distance L/2 from point A, and has unstretched
length of lo=1.2 [ft]. The spring remains in horizontal position throughout the motion due to the roller
guide at B. Determine angular velocity of the bar, o [rad/s], when it goes through horizontal position.
Spring constant is k=7 [lb/ft]. Distance between point A and vertical guide is d=1.5 [ft].
F
g
B
thing
M
A
d
≈](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe0bb1a32-d7c2-4649-8a76-954dcd350b5f%2Ffa27f532-9eb4-4e99-b758-5787ba1c4d8d%2Fhlr5v8_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Determine angular velocity of the bar, [rad/s], when it goes through
horizontal position?
The bar, WA= 100 [lb] and L=3 [ft], shown in figure is initially in the vertical position. The bar is
subjected to a couple moment of M=20 [lb-ft] and a force F=50 [lb], which is always perpendicular to
the end of bar. Also, the spring is attached to bar at distance L/2 from point A, and has unstretched
length of lo=1.2 [ft]. The spring remains in horizontal position throughout the motion due to the roller
guide at B. Determine angular velocity of the bar, o [rad/s], when it goes through horizontal position.
Spring constant is k=7 [lb/ft]. Distance between point A and vertical guide is d=1.5 [ft].
F
g
B
thing
M
A
d
≈
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