exam1.07 - U"? ‘01") MEEN 221 —Fall 2007 Exam...

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Unformatted text preview: U"? ‘01") MEEN 221 —Fall 2007 Exam 1 October 11, 2007 Dr.- McVay Section: Name: Student Number: By my signature below I pledge I have neither given nor received aid in completing this examination: Signature: "Aggies do not lie, cheat, or steal, nor do they tolerate those who do. ” -— Aggie Code of Honor This exam consists of Five (5) problems that are egually weighted Some problems have multiple parts. Be sure to carefully read and properly analyze each question that is asked. Do not jump to unfounded conclusions, but also do not overlook or oversimplify problems either. 4. Be sure to show all work, including sketches, Free Body Diagrams , and calculations, and organize your solution procedure as clearly and systematically as possible. Answers must be justified. 5. Work problems in the space provided on the exam sheets. If you need extra space please use the back of the page and indicate continuation of the problem. Work efficiently, neatly, and use pencil. Clearly indicate final answers by enclosing in a "box" or place answer in box if box is provided. Include any and all appropriate units. Answers should have 3 significant figures. No electronic device of any kind, except a hand calculator, is allowed. Do not write your name on any other page of the exam. WNT‘ NS” 50.00 TOTAL: Z Ewan: q/F o. C ® c O 09w.“ 095+ 99 H EA 0 MO. 09 .uxwr @Qofi; . ) \ 1,..wG. i :\ 1 H OTO l M/k 1,. VFL.‘ C \ ,, .\J.U/« 9.0.: 0365?- F, Lx 2 FJ A DA, min 040‘ \ 0?.“ M O my porno. n E nmE .m.v “ONO. ,+ Om SQQVTnO n E w _m¢ 7a.]: .N \E Ikfl/ )3 AICU QM; \H/Kx) flKfl.“ uT EL I. [Wu 4.. 7 Sme. n \ 0 Q * it Jim HUMP - F , GM 8 a. x + XMF’ : 4x C L LN « .323 82>on xon 2: E E235 SP» 085 .263 2% :0 MN MSSASS SS 302 93% :08 mo E mmmfi 2: 8 ES UN 95 DY mEoo E meme“: 2: G 98 3 6 Emma 2: Am 038.589 .m—x an: mac? @3086 E 98 25 cu mo 03::me m was Sufi 5233 wagon 88m 95:58 2: HS: :03 39an bfiosfimobou—o 8m 98 mmma Esvubmm 96: m 95 < $5an 03% A3:ch cuv g a" 59395 1 .\ ._ngUZ..:.CLI“ 7C... 2 M.0. Problem #2 (20 points) Poles AB and EF support a circus high wire and are held vertically by guy wires as shown. The tension in the high wire (BF) is 9 kN. Assume the weight of the wires and the poles can be ignored. Find the forces actingmn in the guy wires BC and BD andIroa the pole AB at—point—B: Box your answers. ‘i hCEfiWC 1m. 21., r s-f i bk] F ; if e — q 6 — » A6 PAC f“ ion 1839* re: (1399* is; f: if: _ l‘ a, A _ A F60 idep(CI:)L+ED(£B>J+F£;D(@:€:E €550 F6; )" =7 gig” foo (‘ “(00 Z]: :O i -- -— (1‘ _ I __ : {\1 -Q+H§g(‘f5 * E0 7%):0 :> Ugo—H 8' N rag Bq K ’ ZE— :O X“ ........ -. _ v _ t ’ . /X'J ’ 1.2 / — ([757; —O \Y H 007:4 \... I 8—? \w I .l 111,.....\..s.,...lxmli .T C .T HUMILKII J H p) fl 0; . 8.6622 w. E 1 Fruuf - \ k8 2.: i 2 1m + 40 + J iw- “w :Oomflq mOOQth/i < O? < 2 Oh. < n .42..) 2.. -. I . \W. Op.fl....~ .\ < . 7 ~20+0+ 0U nix..— TiuwcCO/Z VD «XLDM, K 02 .1952 10¢ 20+ noowmrvm- 1:0 H CON 9.. O O 3 ,w J. E: < x ,\ «NH #0 +<0EO<< 20002 + mooof uoeom. n WOOD/Po; < .- + 000$ 2+ b000,vi 2+ 600mg“: H CO “I; CC _ COM \ O Cm ON) u. h XL ,2 .fi J , < ( 4.x k0 +<mc<0<4 .59» no 2 . - .323 3:389 20 o :8 2252.2 82: mo Mwwcmmnwwofifiwwlmwvmfiflmo2 2 =8 2: :0 no: 23. 2:3 2: :0 no: 2: 8 00 2: So: 22:222.: 22“ «230.9: 882 2: 222 s we 5 :2 .w E223 A: 2.. 23 N 2: G .22: 2 2: 3 .22: 2 2: a 2: 25% mo 2: 2:82: 2:52: 2:228... N S .2 .0: : . : : Bows“: :28 2: 2 :2; 2:28 8an 2: :o 60 2: :w 228 2: :23 :32: 2: 2 222$ 2 i. :2. 22. .8522: “W 2 + . 26”»: + _ 2.5m- H E. .682» 222 2: 3 52w :25: a 22: :2: 8 n:om+ HEN: @282 0.2: 3:28 o A N+ : .: .2: 2: :5 2 38cm :0 :25: a 22: :2: A o .o #28 :20: a :a @282 2 an. 835. .22 2» : NH :2: 2 D 2:. 95 3:: 32823 S: 22:5 :58 So: @2538 2 2:28 8an 23. A253 3V. mt Beam—m Problem # 4 (20) Points 4(A) 10 points The value of k in the figure is 1/20; i) Find the equation of the straight line in the figure. (3 points) ii) Find the location of the y coordinate of the centroid of the shaded area. (7 points) List the answers in the box provided below: ya 20 Problem # 4 (20 points) (y mi ‘v‘ufr‘ («flat/U Part a) i) Find the equation of the straight line in the figure. ii) Find the location of the y coordinate of the centroid of the shaded area. Note: The value of k in the figure is 1/20 List the answers in the box provided below: Problem 4(b) 10 points Determine the y-coordinate of the centroid of the following shaded area: 5m“ A311--. » 9 7' L1 ((Y’lCu'KJlQ YO )1 l’ZJO CfloQg) (bolt) 2) C(r(lC _TC(L'I()\1 3 manna Ll'u'fw‘y" 5954a il l ll’u'ctch IQ J5; (12 030903 \/C AT : ZYK, ’Al; goo was” : 3WD \3‘612‘ uQOON Jicinvflbk. (“fly UUAW wfififliw% 02:05.. XO£ 05 E WEBER So» coma .mEm 3895 8a 339:1“ :2: 530 .V E8?“ 083 compose“ 2% mo mucocomfioo Eofiug can EBONan 2t ANV Um is E 088 05 CV oEEBow .aBoam cash 05 “on Amt—Em :5 m t 50395 ...
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This note was uploaded on 03/30/2008 for the course MEEN 221 taught by Professor Mcvay during the Spring '08 term at Texas A&M.

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exam1.07 - U"? ‘01") MEEN 221 —Fall 2007 Exam...

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