The manufacturer of an automobile is considering the two designs shown for the vehicle’s lug nut wrench. Forces are applied by the user to the wrench; these forces are perpendicular to plane ABCD and are to be couples.
(a) If FA = QA = 120 N, determine FC and QC, and for each wrench, determine the moment of the couple.
(b) If a moment about the x axis at point D of 8000N·mm is required to loosen the lug nut, determine the values of
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