The uniform bar AB weighs 100 lb. If both springs DE and BC are unstretched when ?
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The uniform bar AB weighs 100 lb. If both springs DE and BC are unstretched when ? = 90o, determine the angle ? for equilibrium using the principle of potential energy. Investigate the stability at the equilibrium position. Both springs always remain in the horizontal position due to the roller guides at C and E.
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k = 4 lb/in. 4 ft k = 2 lb/in. 2 t
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