260_Dynamics 11ed Manual

260_Dynamics 11ed - Engineering Mechanics Dynamics Chapter 14 Problem 14-26 Cylinder A has weight WA and block B has weight WB Determine the

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Engineering Mechanics - Dynamics Chapter 14 Problem 14-26 Cylinder A has weight W A and block B has weight W B . Determine the distance A must descend from rest before it obtains speed v A . Also, what is the tension in the cord supporting block A ? Neglect the mass of the cord and pulleys. Given: W A 60 lb = v A 8 ft s = W B 10 lb = g 32.2 ft s 2 = Solution: L 2 s A s B + = 02 v A v B + = System 0 W A d + W B 2 d 1 2 W A g v A 2 1 2 W B g 2 v A () 2 + = d W A 4 W B + 2 g v A 2 W A 2 W B = d 2.484 ft = Block A alone 0 W A d + Td 1 2 W A g v A 2 = TW A W A v A 2 2 gd = T 36lb = Problem 14-27 The conveyor belt delivers crate each of mass
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This note was uploaded on 08/16/2011 for the course EGN 3321 taught by Professor Christianfeldt during the Spring '08 term at University of Central Florida.

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