Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 193
respectively. Tlien the Liorizontal component of Fj = Fj X cos 70^ = 0.342 Fj,the horizontal component of V., = Fo X cos 30 = 0.806 Fo,the horizontal com])onent of tlie weight = 0,the vertical component of Fj = F^ X cos 20^ = 0..I31)7 F^,the vertical component of F., = F., X cos 00^ = 0.500 Fg,and… … Fig. 15. These e(|uations uuiy l)e solved for the unknown forces; thus fromthe first, Substituting this value of i\ in the second e(piation, we get 0.9397 X 2.532 F, + 0.5 F, = 100, 2.88 F, = 100; 100^ > = o~oQ = 34.72 ])ounds, Fi= 2.532 X 34.72 = 87.91 pounds.EXAriPLES FOR PRACTICE. or, hence…
Architecture · Building · Carpentry
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