A 7-lb block is suspended from a spring having a stiffness of k = 75 lb/ft. The
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A 7-lb block is suspended from a spring having a stiffness of k = 75 lb/ft. The support to which the spring is attached is given simple harmonic motion which may be expressed as δ = (0.15 sin 2t) ft, where t is in seconds. If the damping factor is c/cc = 0.8, determine the phase angle ϕ of steady- state vibration.
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e Wn tan k V m 1 8 ...View the full answer
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Related Book For 
Engineering Mechanics Statics & Dynamics
ISBN: 9780134895154
15th Edition
Authors: Russell C. Hibbeler
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