Question: Boom AB is supported by cable BC and a hinge at A. Knowing that the boom exerts on pin B a force directed along the

Boom AB is supported by cable BC and a hinge at A. Knowing that the boom exerts on pin B a force directed along the boom and that the tension in rope BD is 70 lb, determine

(a) The value of α for which the tension in cable BC is as small as possible,

(b) The corresponding value of the tension.

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