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Unformatted text preview: = 60.85 lb Since B r < B r (max), tipping is impending and P = 13.39 lb max Ans. (b) If ~B= 0.4: Br(max) = ~BBn = 0.40(101.4) = 40.46 lb Since Br > Br(max), tipping is not possible and slipping occurs. For slipping: (A = 0.75A and B = 0.40B ) r n r n + ~ LF h = 0.75A + 0.40B cos 26.57B sin 26.57 = 0 n n n + t LF = A + 0.40B sin 26.57 + B cos 26.57100 P = 0 v n n n + C LM = B (8.944) A n 100(8 cos 26.57)P(16 cos 26.57) = 0 Solving yields: A = 10.515 lb .n B = 88.08 lb n P = P = 5.05 lb max Ans. as}...
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This note was uploaded on 09/24/2011 for the course MEEN 221 taught by Professor Mcvay during the Spring '08 term at Texas A&M.
 Spring '08
 McVay
 Statics

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