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Unformatted text preview: AEM 201: Exam 3
NAME: CWID: 1. (20 points) Determine 2 of the center of mass of the bracket, which is made from
 a thin plate of uniform thickness. 3, CD +~riauaie l60*)00 __ ii B 165,557
Z ‘' 1 A 7.5,92c6 2. (20 points) Determine the resultant force and its location (with respect to point A)
due to the distributed load acting on the top of the beam and the reactions at A and B. l.¢_ XR (500 N/m  _I
_
_I
IfIII
_I TOTAL 20 3. (30 points) The truss is supported by a pin at A and a short link (force in a known
direction) at G. Determine the force (in kips) in member CG and and whether it is in tension or compression. c, Identify all zeroforce members and illustrate through
joint FBDs that each is a zeroforce member. __
—I
_I
11.!!
—I
—I TOTAL 30 
5 4. (30 points) Neglecting the weight of the frame, determine the forces acting on all
4 members. Show your ﬁnal results on an FBD for each of the 4 members. +EMC: A, (3930(40)
5’0 (V2.3 a O h f30)(4°')+(§0)(\z) _
Qv ' 3o " 60
Fir = 60, 0 No \L li'ZFY ‘='— CW“ “160)": O . 1 5
C7 ~.—.. nw+ gram): £0440=l00
C =loo.olL ’l‘
j . $3sz Rxth +30 4‘33(90):O .   ‘
Cx‘nx_= 30430 Cx'nx :GOO‘LG Nol'e J'ka'i— EF :5 a. +wc*Covce M?M\o~ev . Procedure 18 
_I Signiﬁcant Digits(3) 
Results 3 TOTAL 30 
7 n, 6: Mﬁs zé(sovaon time) 2 0
Ex 3M5 A : 3.1(so)(2.o) :. IS'
X 40
4. ﬁx 7: '5'. 001% '9
9X 3 so“) NOw G 9 Cx: (,o—xnx : 7S ‘0“? Q: 75.0 n» e— : Fx" 30 “3x *%(5o)+ls .—. o 3k=3033_—(50)+I5 :: [5
“Ex: 1510011. <— EFY ‘‘ B), + ;(So)——'C,O= 0
13‘, = co§(so)=zo ‘BY= ~2.0.0 “o T
and Reed+9
2.0.0“:
IE”: 30.0“: I},
up 50.0“ 80.0 G
6°"’“° 5'0 onD
F E D '
50.0% E
p . _ I skate +0 \‘We
+ke 30—“, 4mm ari
3 4.6" o“ AFB . QnaWemaHve woo” Le +9 ckooge Hq..’r'
4M; 30 H. ad‘s on 35C“ ”Jake“
HFB
B): "37 62MB: ‘%(3"°)(20)+Rx(‘to) ..—~ 0
ﬁx; 1510M, 9
3
s ‘50 z F;< ‘5' Bx‘rprx “31(50): 0
9" Bx = gang—13 .: 15
“‘5 13;: 1510011, ——>
... 4 __ __
2137— 13y +3=(so) 4,0 0
13‘, == ~10.0 IL T
W
Fined ReSuHs
$50M; :0“. 9°‘°“’ G—
503“; 60.01%:
F .b fem;
F E;
I500“ 50.0“, E
a sum, 60.0“> ...
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 Spring '08
 Freeman

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