Homework Answers
Force, Fa = u Na = 0.3 Na
P = 0.3 Na
Taking moment about point B,
(-Na x 9) + 630 (9 - 5.25) - P(4.45) = 0
9 Na + 4.45 P = 2362.5
9 (P/0.3) + 4.45 P = 2362.5
P = 68.58 lb
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