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Unformatted text preview: 40° 60° 50° C A B D 55° 45° LF RF A B C II Book Problems 2.1, 2.9 (use laws of sines and cosines), 2.8, 2.16, 2.15. (III) Comprehensive problem. Mr. Handy made an appearance in last year’s homework, as no doubt most of you know. a) Determine the tension in cable AC as a function of α if R of the three forces at C acts purely along boom BC. Let α range from 60 degrees 110 degrees as drawn. For the purposes of this problem, you can assume that the section of cable AC always makes a 60 degree angle to the vertical as drawn. b) Determine R as a function of α . c) Let W = 100 lbs. Plot your results of parts a and b using excel, Matlab, or similar program. W 35° 30lbs 50lbs 60° α B C A...
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 Fall '06
 MIRNAJAFIZADEH
 Force, inner product

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