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SP09 MEEN 221 Practice Problems Exam #1 Answers

# SP09 MEEN 221 Practice Problems Exam #1 Answers - i 1584 j...

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MEEN 221 (503) Spring 2009 Answers for practice problems for Exam #1 Problem 3.3: FB = 577.35 lb, FA = 288.68 lb Problem 3.14 NB = 490.35 N, NC = 693.46 N, NL = 1304.46 N, NR = 829.48 N Problem 3.15: Minimum theta = 6.59 degrees Problem 3.18: NA = 866 N, NB = 500 N, theta = 6.59, T = 436 N Problem 3.37: TA = 418.2 lb, TB = 205.2 lb, TC = 444.9 lb Problem 3.38: TA = 603 N, TB = 438.6 N, TC = 925.1 N Problem 4.71: Scalar moment about AB = -1101.8 lb Problem 4.72 Cartesian vector form of moment about CD = -69.1 i + 59.3 j ( N-m) Problem 4.73 Cartesian vector form of moment about OC = 0
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Unformatted text preview: i + 1584 j + 915 k (lb-in) Problem 4.74 Cartesian vector form of moment about OB = 0 i + 260 j + 94.5 k (N-m) Problem 5.35: Xc = 6.00 in, Yc = 10.00 in Problem 5.36: Xc = 101.5 mm, Yc = 173.8 mm Problem 5.39: Xc = 0.431 in, Yc = 0.431 in Problem 5.40: Xc = 75.5 mm, Yc = 87.2 mm Problem 5.46: Xc = -8.73 mm, Yc = 63.4 mm Problem 6.34 Ax = 0 (N), Ay = 3.77 (kN) upwards Moment at A = 14.53 kN.m (anticlockwise moment) Problem 6.42: T = 1350 N, Bx = 1169.1 N, By = 1125 N Problem 6.44: TB = 1413.46 N, Ax = 1310.5 N, Ay = 320.5 N...
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