Beer, Johnston, Eisenberg Vector Mechanics for Engineers – Statics 8 ed Ch7_2007

# Vector Mechanics for Engineers: Statics w/CD-ROM

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.,"_l ic f+- rz m. PROBLEM 7.5 Determine the internal forces at point -I of the sffucture shown. I,| ul ra u u g E E H (n|ara o o o r o O O - ( r l r l { A t t d * c i c{ cl c.{ @ rn e ttn t<-n : h " = (tt" ) - Gt \'")(r.l ') Nx A * \t & Itt =33 +,5 Nt= 5a \\ t ar: \ \ t a os -\ \$r fv-\ s t r I J ---> vv F* to'r - .... '*{ e q : o LF," = O n w F - la.{.t-l[ -t -hrt F t\3 *v \$>ru)(r r f \ n l + frB ts ",- {r.ro S-n.. 5 a t b u a h :

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/, ],LL *) FtsD Af : b f, L ^ 6 :TV U *-"1. { F'r: o {-Fx=O {rv\= : o ftno "P F v- E o v=3 -> = R L ) I-1= l*t*(+-,+) = o zv,(zr*\ ? (t*) B g P 5 7. -V=D o. q?+ aF- = o r+ = 5P, / z / f F y = \$ ZFr:o ZI\.\: =- fn- *fiV o 4- ' F = a c , - L , 6P z F = z V { 5 I I FtsD hf, I Utr a{,ttt V l - f-r t i ,'l 4,+ n = ! * -
J/ /z a'z-z) B {nno = o a?- ,{? n) -."(**).o €€t, - o ZF^=o t-F1f = O v- 7r(frt)=o ffi +'+ -? -- D ,r\$( T" \ tr=# E - z P \ , - : v T Yr-*(?fr*)=g h *Y)

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PROBLEM 7.33 For the beam and loading shown, (a) draw the shear and bending-monent diagrams, (b) determine the maximum absolute values of the shear arud bendingmoment. u! vl I,t u u u E U g I t r |,'.|a l,! o o o ra OO a { r l c{ c.t c.l n|c{c.{ E F * - P C r = o {h" = (, oo)C3:d -(q")(.6+\ r.6or)(,"f\ * B (r.a\$*) =o 3 , 3 + 5 Ltrf,= s \rq sr"_4e*_9 ={,J"' {trx =o x v f r , \ & = o * t - V r O V - - l n | ( n q ) x . * o t n z F f g i p X - ) Urt*^ k *6l M -0 I X* 3.b fkl: '3,Q, ]k A+^1.;+,, Cd.D h=i:fVS* {%:-l E-r*.1 *y'=o t/=t.3+f i? 1.m*o I /n+ (\ k)(") - c? (rc-:,a) = a f r A : c t * - 3 , b c \ - y r q = 1 , 3 1 - S x ^ l l , l 5 \= b'b f'1 : 3 '54 5 X = 5 l l F \ = 6
?'az ca^\, c^, €B btr tr,v) * t { = ) Y \ : u,l t I ut r,l t^ E I T g l | l | I u ut vt r,| o o o r n O O - 6 l r l ct rt rt e{(\lc{ e{(\l(\l x = l , b l ' { : - - 1 , 3 5 X > E,?T-

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