In the design of a timing mechanism, the motion of pin P in the fixed circular slot is controlled by the guide A, which is being elevated byits lead screw. Guide A starts from rest with pin P at the lowest point in the circular slot, and accelerates upward at a constant rate untilit reaches a speed of 90 mm/s at the halfway point of its vertical displacement. The guide then decelerates at a constant rate andcomes to a stop with pin P at the uppermost point in the circular slot. Determine the n- and t-components of acceleration of pin Poncethe pin has traveled 25° around the slot from the starting position.Answers:an =22at =ii220 mmPmm/s²mm/s²

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In the design of a timing mechanism, the motion of pin P in the fixed circular slot is controlled by the guide A, which is being elevated its lead screw. Guide A starts from rest with pin P at the lowest point in the circular slot, and accelerates upward at a constant rate until it reaches a speed of 95 mm/s at the halfway point of its vertical displacement. The guide then decelerates at a constant rate and comes to a stop with pin P at the uppermost point in the circular slot. Determine the n- and t-components of acceleration of pin Ponce the pin has traveled 32° around the slot from the starting position. Answers: an = 25% a₂ = i i 285 mm P mm/s² mm/s²
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