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Chapter 2, Problem 2/053 For F-70 lb, compute the combined moment of the two forces about (a) point o, (b) point C, (c) point D. The moments are positive if counterclockwise, negative if clockwise. F ft y, 15 A (-10, 17) D (19, 0) 0 I B (191-7) C (-13, -11) 5ฯ Answer: (a) Mo = (b) Mc= (c) MD= lb-ft lb-ft

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NoCo .58 lb Moroen about oin c 15+1 15,28, .26 lb-er.Otの 2 Cos Cos p4 86 fcas Caso)

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