Fall 2008 Exam 2 Soln - ltz’flrw Pa.” :03 TLSF’L *...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
Background image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ltz’flrw Pa.” :03 TLSF’L * gfifuh‘o,‘ A 5’ 6 NW Peggimfi Bw%: "#2: M 5 6 “L! m "its-2.62“ Mam I ‘ L 15 .3 -~ fibgf-Q‘nl .Mflg{._2r,3 I ’ O (0' g I —' 0 ~10 it PM» flank maven/IL 56 c, k Umrv':r ~—{ 4 -3 TL “8 .6 J ‘* IM ., {fig 20 MW 5% yaw: (owe) (4—0 mo; «90‘ «90K \Mu —:- ~LLW w: CDC—+0 wk (3) VE%€ Problem 2 (25 Points) The crate of unknown weight W shovm in the figures is supported by three cables, AB, AC, and AD. The tension in cable AB is 3 RN. a) Draw a complete and separate FBD for this system (5) b) Represent all the forces in rectangular vector form (10) 0) Write down the scalar equations needed to caiculate the weight of the crate (Do not solve) (5) d) Solve to find the weight of the crate. (5) Hint: Start with the summation of forces in the x direction .....__-=~ xx A f n “7“: I N» PH)?’ m r 2 L2 ~13”) ,,_ E12. [HO/h0_;‘1:¥\) WV“ Aifx‘mfwi“? M W M_Wms t? CK) :FYS-Q "E "f- ~l ~— 1" P r) p” 0 ® :Fj’l—Q) 6C) 4.. if? {a \\ - v—w- if N), 4—“- w W 13,-“ © 25w) —}_3; +3 1Q *Ei_i‘:© @ I? 15' far} ,1 a) Draw the free body diagram for the beam AB. (9) 2 pt for axes, lpt for each force and ooupie correctly shown b) Draw a free body diagram for beam AC. (8) i’roblem 4 (25 points) A machine component is subjected to the forces shown, each of which is parallel to one of the coordinate axes. y] a) Determine the moment of these four I mfg/1:"! forces about point B and express your 1.3a} 3‘: ,3 resuit in vector form (10) b) Repiace the four forces with a force and a couple at A and express your result in vector form. Draw a new 3%?6 for this. 90 mtr ‘ 0) Determine the scalar component of the w x moment in the direction AC (5) A ' z/KwiiLI/X/ ! f’, a) 0n H G N a} b Qua? ‘tLJt. ifié‘gw at}; 0 Prooivc'g mama/£5 CUL 5 M 63 m {gig W him» "L {Mg “’5‘ 53“) ® r r. . M @ rt '1’ v“ M rblg: ('OQJWIDL+/”IQ1}W m hit) :(KXQ , a” .4 \ ’ r Me “=— 00: ’L ’3 u ’1 g +0“ n. «~t we tz-é? hZooD O-Eoeo A O OINOO 1,00fDWoofi—{foookfl + .oojECv—IZOOI) 4580?};ng -_~_ (mol"+:3.tjmfl—lq Nm [2) b) gwstmwoflco _,, 72?sz 201251;} "a :g :3; 20- too : — zuoj +ZYL) N (a we (‘37 W ___. Wu“) H __, ' MA 3- rare-7“- t’m’ Mme F3013 fire/e who; We WAN downs/“PAW”? M mom.th a?“ ((5/4 ‘2: “(fiat/A : (.03: +ID‘3J! "—- D}f§£)fi1 "PD/A 160$; +'OXJ'“th‘T)fi:)I-M iJhE‘j ijkli EJKEJ .2» sheet 0 I; o or2+r~i§3rb Lf try “2’ +355 [1/10 "It’ll/t) 0 0—41)” oo $000040“) 0 0 ,th 00 Wk; 1 (fig-1500 ’YOOD "(’é‘mkfl wh OGYKWOO })—-(/5§mflj :1 «’SE —H’$,§§' .4“? (a) Nm (2) _—_WW .._5 G: .... CU W («It +1} «am \w 20‘ "” 3v’?‘ ‘ W "$WNM Q) [Ry f3 H QJS’Q O K \ 1ch F1» ...
View Full Document

This note was uploaded on 01/26/2009 for the course ENGR ENGR1100 taught by Professor Spilker during the Fall '09 term at Rensselaer Polytechnic Institute.

Page1 / 5

Fall 2008 Exam 2 Soln - ltz’flrw Pa.” :03 TLSF’L *...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online