A machine element weighing 800 lb is supported by two
Chapter 19, Problem 19.139(choose chapter or problem)
A machine element weighing 800 lb is supported by two springs, each having a constant of 200 lb/in. A periodic force of maximum value 30 lb is applied to the element with a frequency of 2.5 cycles per second. Knowing that the coefficient of damping is \(8\ \mathrm{lb}\cdot\mathrm{s}/\mathrm{in.}\), determine the amplitude of the steady-state vibration of the element.
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