Determine the spring constant k required for equilibrium

Reference no: EM13315725

The 81-lb uniform square plate is supported by a ball-and-socket joint at O, a cable at E, a fixture at A which can support vertical force only, and a linear spring at C. If the unstretched length of the spring is 4 in., determine the spring constant k required for equilibrium in the position.

Reference no: EM13315725

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