2010Exam02 - f 6* = 0.65s; - l,&aar''...

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Engineering 250 - Statics Exam#2 (1012512010) Warrior n+ frar/rn f . -I*i $ j Ax \t tAa i Show your work (you need to support your answers, right or wrong, with the work that leads to those answers). Each problem is equally weighted in the overall exam grade. 1. Determine the reactions for the cantilevered beam. Let a = % L. Express your answers in terms of w1, w2, and L. E, /.wl (rsr) 4= t / (tpt) 'g i: " - t, 1=4wzl (/p/) ul , . . ' I t ?--.;.-+i (tpt) d.= / / * l2l = jL (rpt) 'fi:, t ,r" , 4 24 g *: * E Fr= o, As- {*,1- **ot = o X lA,-=Ju./*3 utLi(?lft) = $ /'tt,l f ;! tt/s 6 t &A'0, tvlo - f*a,t '&r, i o" Er*tp',, nn- fta'4{'"tl;{.*J?t)(,*t).:u, I iFL i 4..."-,. -*.".- - -.? 'L ft re) 2. A610 N force acts on a lever attached to a post as shoWh ETlz plSne). Determine the moment Me the force creates about the point O lrt - taB- rae E taE )( ' 8( d.bloj * o.4oa& fu) fteh) -\ fac .ilae = 1, ha, rpe ftlo= h,, tf t. t l/ I l0 I l34r.s //f. ?2 i I I t I t fln) { l(u) - 20{, t h 40 ?q. 7?t 0., '3t' t"q ; 6fi* |f.r. /39 0,6fir, zqf .1 r/3
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Unformatted text preview: f 6* = 0.65s; - l,&aar'' 0"4ff8* tu) (/P/) t 0{ = 0. 61fi3 (ni ft pt} 4r= a' |ra ;- o,4q/6j ' /' 6 56 4 4r' 6/a $ g6t = 34f'g; - 2??'rr -?f{.n/r!{) + i ( tu,uottrf#"#t- (a wet(2ry.il )-i(a-(a,floa)(a4f.s)) +/, (a-(0,60&)k4(,il) 6 & (N'a)-/20i r /4ti- 2/0 * (ff* /f pk) ( N-a) 3. A 50 kg crate is attached to the trolley-beam system shown. Let a = 3 m. (a) Determine the tension in cable CD. (b) Determine the reactions at the pin support B. Q 2 ft1a=0, Uqa.6ilftn) - ( fta e rn 56')(t,f(f w) -(Qoar 36)fu.4a) = /,4?4n Fro= h47t,F N'a x t.474 n 4p* ti7/,6 i/-n irr= ffg,r /{ -> W hpft) 2Fr=0, Bx r (?fg,/Mor 360 =o 2 Fr=o, q -Br=-gtr.ttt trwm4 4Qo. s rl t (qf (, r ,t/) nn a{I:-'o By= -ilt,ftfi dr br,rm (2P/r] l,o: 50 4 /t,gral ' ( (21 = 4fo.E rtt ( t pt) ht 35o = t4a d e/ = /.?l? at I r,,*f,i 4u= fft. / il -+ WA hpft,) a/htmlr appraarA 6o ar/tag @ O G?0.6il)&a) - (fnar 36o)(a.4nt t4*) = ,!, (rpt)...
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2010Exam02 - f 6* = 0.65s; - l,&aar''...

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