788_Dynamics 11ed Manual

788_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 22 Problem 22-1 When a load of weight W 1 is suspended from a spring, the spring is stretched a distance d . Determine the natural frequency and the period of vibration for a load of weight W 2 attached to the same spring. Given: W 1 20 lb = W 2 10 lb = d 4in = Solution: k W 1 d = k 60.00 lb ft = ω n k W 2 g = n 13.89 rad s = τ 2 π n = 0.45 s = f n 2 = f 2.21 1 s = Problem 22-2 A spring has stiffness k . If a block of mass M is attached to the spring, pushed a distance d above its equilibrium position, and released from rest, determine the equation which describes the
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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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