Beer, Johnston, Eisenberg Vector Mechanics for Engineers – Statics 8 ed Ch5.8-12_2007

Vector Mechanics for Engineers: Statics w/CD-ROM

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FROGLEfl 5.67 ' Deterrnine the reactions a.t the beam supports for the given loading. =-, * 0,.,h K, =1t5- = R,= B. - bh= Rat x,c-r z o'sf - \,4 n'.. ? o , 3 + \, 5 rr., a (r,+XrKNb^) --l- l.t,r{ KN) (,,'{*)[rsK\J\^) 3, b 1.(t*, S)rc-e {\c- o\r'ec^- r--ro..r \d t1 d,$;""\s +p {<-{er-i '.g* c}\ dr6ru)", q.-}a l1u;"o-\e^I ,$o* - *J$.* , *^,b. JL\ernnr*g{ , *i[h,ts '[email protected]: do',e l- , d s a , - , J l - n , ^ t l - - " ' l congtC*\{ o? 6. {€c--1 a*tU V o. ol--j:*"h* ;-'e* ft"t\ +: 4.s s 'rn,.,-^ -$,a ?o-oLo la- ur4 E ronptC+\\ o^ Lp o$ +lc* b{ '{,te* t<.a,-. *t* old*A' " S'.e* 1' r.^. {[i -b f o{ *t4.. bqo,^^ I s ^dded .'la Y'{<- ba*[o'"-. I 7a- B1 a.g a *o, = O.3 r- { F ^ > o Zw\6 t Q Nr =o Zfv\u = €_r\g - 4*(a.3 *\ r llr ( ... - -- - l\b (,g,s *) * (,{,g ru)( ,,z.) - L. (s.3-r,s) r,r,^) - (E,f,r^sx',g Ab= ?,2 KU1 { \ a \ - R r * ? z - + B \ \- = l.Ztil -l9,tf f-N+3,6 ttxJ " %
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/t "rrg }- ),{l,rn PROBLEM 5.73 A grade beanAB supports three concentrated loads and rests on soil and the top of a large rock. The soil exerts anupward distributed load and the rock exerts a concentrated load Rn as shown. Knowing that P = l kip I and we = *wt, determine the values of wl and Rp conesponding to z equilibrium. A " . l ' l c l l - g u- tilti,l". )rve v1 Wil = i ".,h l f f f i u - -* l-t, 1", B r : ! \ = ( a , u 6 t ) ( . ^ u F / f l : 3 , 6 u r r * I l " f X r = - r , ? 6 + R,- = l-ux = rzls ry\(* r-) : \.3s r,:* Ihr x. = 5 = r,? fr RJ = bL = (s.q6*)(L,r") > e.+ ure. q- x3 : ,.+ ff €rr\" = &c^p)(:r,\,b+) * R, (' *li 1Rz(r t6*)r t:Ca,?f{)- - P (3,G6f :(t) (r.' b*).-(:,r -^\(r tgr\* (,tsur,il,.(\* (a.+,"r^) ( q C ( a , { ) - ( r ) t g , L ) - l,t + 3,a.1 uOa WA = O,55'.
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