190_Dynamics 11ed Manual

190_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 13 Problem 13-57 The wrecking ball of mass M is suspended from the crane by a cable having a negligible mass. If the ball has speed v at the instant it is at its lowest point θ , determine the tension in the cable at this instant. Also, determine the angle to which the ball swings before it stops. Units Used: kN 10 3 N = Given: M 600 kg = v 8 m s = r 12 m = g 9.81 m s 2 = Solution: At the lowest point TM g M v 2 r = g M v 2 r + = T 9.086 kN = At some arbitrary angle M g sin () Ma t = a t g sin = v r d v d
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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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