640_Dynamics 11ed Manual

640_Dynamics 11ed - m s 2 = m A 25 kg = r i 0.18 m = Solution Guesses t 1 s = v B 1 m s = 1 rad s = Given v A r o = v B r i = m A gtr o m B gtr i

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Engineering Mechanics - Dynamics Chapter 19 Given: M 2kg = t 3s = r 80 mm = Solution: 0 Mgrt + 3 2 Mr 2 ω = 2 3 g r t = 245 rad s = *Problem 19-12 The spool has mass m S and radius of gyration k O . Block A has mass m A , and block B has mass m B . If they are released from rest, determine the time required for block A to attain speed v A . Neglect the mass of the ropes. Given: m S 30 kg = m B 10 kg = r o 0.3 m = k O 0.25 m = v A 2 m s = g 9.81
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Unformatted text preview: m s 2 = m A 25 kg = r i 0.18 m = Solution: Guesses t 1 s = v B 1 m s = 1 rad s = Given v A r o = v B r i = m A gtr o + m B gtr i − m A v A r o m B v B r i + m S k O 2 + = t v B ⎛ ⎜ ⎜ ⎝ ⎞ ⎟ ⎟ ⎠ Find t v B , , ( ) = v B 1.20 m s = 6.67 rad s = t 0.530 s = 638...
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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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