Question: A sign is suspended from two chains AE and BF. Knowing that the tension in BF is 45 lb, determine (a) The moment about A

A sign is suspended from two chains AE and BF. Knowing that the tension in BF is 45 lb, determine

(a) The moment about A of the force exerted by the chain at B,

(b) The magnitude and sense of the vertical force applied at C which creates the same moment about A,

(c) The smallest force applied at B which creates the same moment about A.



60

60" 4.4 ft 3.1 ft 6.5 ft

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