Q7. The uniform 7.9-kg slender bar with a length of 3.5 m is pinned at point O. It is initially at rest, and then is subjected to a horizontal impulsive force at B. The average value of the force is 1,270 N, and its duration is 0.04 s. If the force causes the bar to swing to the horizontal position before falling, what is the distance h? Assume the bar is still vertical immediately after the impact. Your answer must include 2 places after the decimal point, and proper Sl unit. Take g = 9.81 m/s². T h

Q7. The uniform 7.9-kg slender bar with a length of 3.5 m is pinned at point O. It is initially at rest, and then is subjected to a horizontal impulsive force at B. The average value of the force is 1,270 N, and its duration is 0.04 s. If the force causes the bar to swing to the horizontal position before falling, what is the distance h? Assume the bar is still vertical immediately after the impact. Your answer must include 2 places after the decimal point, and proper Sl unit. Take g = 9.81 m/s². T h

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.48P: Find the smallest distance d for which the hook will remain at rest when acted on by the force P....

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B
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