Exam 1 (20).pdf - Question Pin В weighs 4 oz and is free to slide in a horizontal plane along the rotating arm О� and along the circular slot

Exam 1 (20).pdf - Question Pin Ð’ weighs 4 oz and is...

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Question: Pin В weighs 4 oz and is free to slide in a horizontal plane along the rotating arm ОС and along the circular slot DE of radius b = 20 in. Neglecting friction and assuming that θ = 15 rad/s and θ = 250 rad/s2 for the position θ = 20°, determine for that position (a) the radial and transverse components of the resultant force exerted on pin B, (b) the forces P and Q exerted on pin B, respectively, by rod OC and the wall of slot DE. Answer : Draw the line diagram showing the rotating arm rotating in a circular slot.
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Consider the triangle OAC.
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From the trigonometry, . Differentiate by using the chain rule: . Again, differentiate by using the chain rule: Here, is the radius of the circular slot and
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  • Summer '16
  • boer
  • Force, 4 oz, rod OC, 15 rad, 250 rad

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