0501_EM201_T3_sol

0501_EM201_T3_sol - (tat g: 33w gnaw Egg (5 3 ’- uou 2....

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Unformatted text preview: (tat g: 33w gnaw Egg (5 3 ’- uou 2. EM 201 Test #3 at 7* D7 March 30, 20053;] Student Number: Kg Pmblem #1- (25 pOintS)In the frame shown, the members are pin-connected and their weights can be neglected. - Find the external reactions on the frame at A and D. l. 3% J? o Find the forces at A and B on Him bier ABC, and Show them on the member, below. ~__-a- l‘: FRED ijzmgso: qu ‘3' LOLA!) "' 334 W {Li ' *5 EWIO= 0 Db {MN -+ m ' 4, 9- From Groupwork! .— __ . . ' ' u “A” I11 5 Ax: Oi KM a inf-7;: « yr -_ (Lt eHDN -— ‘4 g; \ A 1 (WV L‘53 B k“) l 3:, : ‘45 m t)“ t ' e ‘ mtg.”- . i tot» “550me 2. k t 6* " #(3'QW # 1) '- if) ( l Dy. agsmT é W““‘“W— 0fi____W._..._,z ._‘ E .L ZF. _ \N ___ m_ '3x ‘I, I‘.‘ I I __ _ is: :. 'jw,l=.‘.,:..../1 ' H "Q" q m 6-9” .- - 135W m..:§::-g._;i Gaiwi {710 \aQ EM 201 Test #3 March 30, 2005 Student Number: _ K 6;; Problem # 2. (25 points) Fred, who now weights 240 lbs, hangs from the truss, bClOW. Determine the forces, in _. an - ._ .r as , a ,9; ,. .7, ' D3225 i. Beau: :ZLYMO) ‘ A3 * 5 ’ pL‘ ‘3 I I . \I aim! i — Wmmu _.u__, 7._._&__‘.....~.-.,..__.___......_- -- e " I -_ N [E 41 DE: 3 WW) .= qgQ us®. : 7M : H. De.) it 3 a"? ti Wit e 3 v . \J ,. ” .. f” [3 Ah \DL 9L 5 5 » DL» 2;; (ago) 99%; ~ «um-«M M e 95 —.§ H1 J g 0480 LB) ONEGC: flml ‘ \ngfitb‘w {yd-M L‘i' w Luflfl \ fl : aw U3 M EM 201 Test #3 March 30, 2005 Student Number: Problem #3 525 points! WP Determine the centroid of the composite section shown in the figure. Give the coordinates of this locationrelative to the given x-y axis. ’1 ,1 .u. ,1 th ' --—«—9 EM 201 Test #3 March 30, 2005 Student Number: Problem # 4. (25 pts) W a: 4 m _ 2 _ k For the beam and loading shown, vertex b F 9 m determine the following: w] = 6 Ext/m ' wz : 18 I‘d/m (a) find the magnitude and location of the resultants for each of the distributed loads. (Show these on the beam provided below.) _ triangle (b) show each resultant load (from part a) and its corresponding location on the beam below (c) the reactions at the beam support. i? , R: 90603.: ‘2 Wm M i‘ ; Ll — 0‘39, ' M - "- hlf’ 0" “We” s-“igfil‘lel'kbj ‘<—fl—>- “b “fl: I; “L IO :5" (d) On the beam, below, show the magnitude and location of the resultant of all applied forces {i.e., the resultant of the point load(s) combined with the distributed loads}. (Note: this should be egufvalent to the original fires-moment loading, above. ) - ‘w ’ . M 45‘ “Km to .: 25:0,: wins! >2 32—5—93 1- r3 130.63% a W- . " " let. “a; H/W‘NJ EM 201 Test #3 March 30, 2005 Student Number: E u Problem # Bonus*: (5 points - toward test score, g you qualify) lggg’; fig ggg timea bggg! Credit will only be given if you complete the entire test and if the problem is 100% correct. Bonus points will only be given if this problem is 100% correct. Taking pot shots at it won’t get you. bonus points: The extra points (if any) will be added to your test score. A small bolt cutter operated by hand for cutting small bolts and rods is shown in the sketch For a hand grip of P : 30 lbs, (a) determine the force (in lbs) developed by each jaw on the rod to be cut, and (b) determine the mechanical advantage of this tool. _ I2. .: l: P QEMNO ) {00 B = ‘20}: ) Eir— it 180 " 20 60“} ‘ - Dimensions in Millimeters l: .2: 35 2500 H?- F ...
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0501_EM201_T3_sol - (tat g: 33w gnaw Egg (5 3 ’- uou 2....

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