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The rigid bar AD is supported by two steel wires of 1/16 inch diameter (E=29E6 psi) and a pin and bracket at A. Knowing that

The rigid bar AD is supported by two steel wires of 1/16 inch diameter (E=29E6 psi) and a pin and bracket at A. Knowing that the wires were initially taut, determine (a) the additional tension in each wire when a 120lb load P is applied at B,(b) the corresponding deflection of point B.

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