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https://session. masteringengineering.com/myct itemview?assignmentProblemID.6098099 Onlne Quiz & Problem 8.86 | e previous 5 of 5 return to assignment Problem 8.86 Part A Aforce of P=25N is just sufficient to prevent the 28- kg cylinder from descending tauren Determine the required force P to begin lifing the cylinder. The rope passes over a rough peg with two and half turns Express your answer to three signidicant figures and include the appropriate units. P Value UnitsS Submit My Answers Gtve Up Figure 1 1011

Explanation / Answer

rope passes over a rough peg with two and half turns n = 2.5 turns

angle of contact = n * 2 pi = 2.5 * 2 pi = 5 pi

T1 = 25 N

T2 = m g = 28 * 9.8 = 274 N

Belt tension T2 = T1 * eB

eB = 274 / 25 = 10.96

P = 274 * eB = 274 * 10.96

P = 3000 N = 3 kN

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