For the rig and crate of Prob. 4.22, and assuming that the cable is anchored at F as
Chapter 4, Problem 4.23(choose chapter or problem)
For the rig and crate of Prob. 4.22, and assuming that the cable is anchored at F as shown, determine (a) the required tension in cable ADCF if the maximum value of the couple at E as x varies from 1.5 to 17.5 ft is to be as small as possible, (b) the corresponding maximum value of the couple.
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