Question: A uniform 6-lb disk can roll without slipping on a cylindrical surface and is attached to a 4-lb uniform slender bar AB. The bar is

A uniform 6-lb disk can roll without slipping on a cylindrical surface and is attached to a 4-lb uniform slender bar AB. The bar is attached to a spring of constant k = 20 lb/ft and can rotate freely in the vertical plane about point A. Knowing that end B is given a small displacement and released, determine the period of the resulting vibration.

20 in. 20 in k 6 in.

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