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

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

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Question: Pin Ð’ weighs 4 oz and is free to slide in a horizontal plane along the rotating arm ÐžÐ¡ and along the circular slot DE of radius b = 20 in. Neglecting friction and assuming that Î¸ = 15 rad/s and Î¸ = 250 rad/s2 for the position Î¸ = 20Â°, 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. Consider the triangle OAC. 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    #### You've reached the end of your free preview.

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• Summer '16
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