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hwk_10 - 222227222_£a22t 2 2222—22 2 The rectangular...

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Unformatted text preview: 222227222 _,___£a22t 2 2222—22 2 The rectangular platform is hinged at A and B and is supported by a cable that passes over a frictionless hook at E. Knowing that the tension in the cable is 1349 N , determine the moment about each of the coordinate axes of the force exerted by the cable at C. 3 EFETE {l SHEETS “TM 2224221” 2 Mile we AX 16f. §~ @- in X? E}?! ‘43} an m- a: 9m- 9-7 i— 1.2.! EL! L1,: . =3! 5;; ‘E want {L‘ {I} (I: 0 C: 0 x LE: C C 1 F. W 1 x— N v;- t <- <: 3 ‘ (Q LG 6.! j (\E C‘.‘ C\_' 1 ,. . The 2.4—m-wide portion ABCD of an inclined, cantilevereci waik~ g a Way is partiaily supported by members EF and GH. Knowing that the com- - pressive force exerted by; member GH on the walkwax at H is 21.3 kN, @— termine the moment of that force about ed e AD of the walkway. WM], MAD": SWEH COORDn )4 (O r 0 I O) fiver Pf. ‘To 150m??? DK 7' 2/ 0’91! 0)” é (air/Lsr 0) 6155 21> was/3H (415; 49,6, 24) MWMTS 92E. @fia’i’g’ .: )ADJP’ M: £39253+0J2fl+05 «a; 7-291: #3:) :@ (jg; LBJ” =+ 05 '4’” 3‘ I rm) _ . . . i 6 e; 71,3{éAlCFrpza +25%“; wit-[é a: -—’[.i 5; +I4.2j+}4,.2[4 {ti 3:“ sin-met M. m105$$,,._ Witt? 50 Pfgiffi'i 6" ”WC? "’11 ‘x ( m3 \nnclrmn \W A / _ ~ » 2005M+EET$ 7? M1 2211-12 P" IN juffi%m $35’3 3? 3&4 / 5? 8.4 ft 2; -E) L (L tn Mb Detail of mounting bracket '3 / 2.4 ft 48& B\\<:;\ I 2 3459 A mast is mounted on the roof of a house using bracket ABCD and is guyed by cables EF, EG‘ and EH. Knowing that the force exerted by cable EF at E is 29.7 lb; determine the moment of that force about the line joining points D and I. 99 Walt-$3218 "PWTOF y.,cmmg$gg 33’ ’ {17646 [Bibi 30,6”; «klbrzK—j: gqg 5.. [63:] +2391; 5%? l. 9, 7% 23 35+ Hyatt Wygsw ED. 8 E E m 5'? @(CE‘ 737% 669%?in 'iEhli fiE’CUE’ D: E 2 “2524504744“ WSWZ%%>W£4L; #1235; f “3226‘? In Prob. 3.59, determine the perpendicular distance between cable EF and the line joining points D and I. MOMfWU] )7)”. b FROM (1.24:5? I444 [is-224% 44072144 . [4.049449 4204417425 L142“ 13:“ [gig P22044331) “mmf )2 )4 22222242942247 of? (404444 1244242224) “(Hg 42/22; 422224qu :- 4442:2222); 444401 432ng4;); 4424,4273; 0? Feed; 24 044% $1; WEN U444 '22: 2’7?) 2222423 4 242022 0226;; [a D22: MUST USE MMFMEWQF 72212: {H247 252 _L 270 5f BY ‘ (“MW “WW3 GFT4 )1 24>) 24; 55‘: 2. : (,1) )6 WJECLT 1);? ALONG; N: US” 40 [>57 Roma-(J : TE? jDI. ‘— ngll '77:: DI I 103/1494 Us“? WWO‘KZ‘EEEI 7/2/2339”; '73 0577444 EFL 725,5— ; <2.) [2222 22... (;L)g4) 09 ;TW°:41£TgF//Dr _ . C574£4é2144 242315 [12)- 25 (0297;1- 22:2423? _ (524%).97M 6162'296292’2413‘3242 (24,3)(0) 2-2-2 7.9: (22/ {A = TEF” ...
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