129_Dynamics 11ed Manual

129_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 12 Given: v C 4 m s = a D 8 m s 2 = h 3m = Solution: L 1 s D 2 s A + = 0 v D 2 v A + = 0 a D 2 a A + = L 2 s B s B s C () + = 02 v B v C = a B a C = a A a D 2 = v A a A t = s A h = a A t 2 2 = t 2 h a A = t 1.225 s = v A a A t = v B 1 2 v C = v AB v A v B = v AB 2.90 m s = * Problem 12-184 If block A of the pulley system is moving downward with speed
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