Question: A 20-lb uniform equilateral triangular plate is suspended from a pin located at one of its vertices and is attached to two springs, each of

A 20-lb uniform equilateral triangular plate is suspended from a pin located at one of its vertices and is attached to two springs, each of constant k = 14 lb/ft. Knowing that the plate is given a small angular displacement and released, determine the frequency of the resulting vibration.

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