A 45-lb uniform square plate is suspended from a pin
Chapter 19, Problem 19.57(choose chapter or problem)
A 45-lb uniform square plate is suspended from a pin located at the midpoint A of one of its 1.2-ft edges and is attached to springs, each of constant k = 8 lb/in. If corner B is given a small displacement and released, determine the frequency of the resulting vibration. Assume that each spring can act in either tension or compression.
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