# test5 - COE 2001 — Test 2 — Fall 2006 Name: KEY PLEASE...

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Unformatted text preview: COE 2001 — Test 2 — Fall 2006 Name: KEY PLEASE NOTE: 1. If axes are speciﬁed for a given problem, you are to use them. Do not change them in any way or you get a 0 (zero) to that question. 2 Show all work. 3. Provide units with your answers, and box them. 4 The “lb” unit means “lb-force” in this test, NOT “lb—mass” (i.e. do NOT multiply by gravity to get a force!). 5. Deﬁne clearly any new variable you introduce in a problem based on the givens. 6. For the ﬁrst problem, you are to use vectors to solve it, i.e. write forces and moment arms as vectors and calculate moments using cross products. Failure to comply will result in a 0 to the question even it vou arrive at the right answer in some difZerent manner. Pb. I (50 pts) — Bar ABCD is supported by a ball-and-socket joint at A and by three cables. 21— Draw a complete FBD of the bar on a separate picture. Fully label all forces and indicate their direction clearly. b— For a = 200 mm, ﬁnd the tension in each cable. 300 M —=, __ a? 0.04::‘ l _ A CJF : CF Olq,_o.l4 =_C£._{ CF 049 0-0 —-—r —-—-3 T _—~ 6 T 0-049 ( A '5" ' ‘56 ’1‘ JT -O‘téxarOuJ be, [)6 -O 7’ L _Og+o.3 048 +O\4 7:.“ "a 0-04? \ l -T 3:21- ( A 4 Be (\$5 Be Be O_o t_TbE(:oqz.+038(: 0497302- 0.1-0 —’ ‘a A sd‘ 3‘”; A mm? W) 11,“, ZMA, “=0 Y ——§ —-—3 -——-v, -——"5 ——-s .__, -———o A —, EMA = ABA—TEE + AC. XTU: + M) KTM, + {VAX (“3%J)=° + Coast/3+ 0443") x C-TOP/O + (0.4? T _ 0.31) X Toe C“ 0% In Gig/D + (0.4%? 43-91) K (40°33 ._. :Tt-‘se com) + Tm (0- ‘41) +756 (0431: +033? 4— 0-0? - gee (0.49 11 + 0-2?) ,3” \$5, :qulutbﬁuuk. Pb H (50 pts) — For the frame given below: Specify clearly your x and y axes. Draw a complete FBD of each member separately. What can you say about member FE? Does it matter where the external load at B is placed as you separate the members? Why or why not? e- Solve for the force in that membekONLY. Specify whether it is in compression or tens1on. Q-OO‘N | I I I ...
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## This note was uploaded on 11/04/2009 for the course COE 2001 taught by Professor Valle during the Spring '08 term at Georgia Tech.

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test5 - COE 2001 — Test 2 — Fall 2006 Name: KEY PLEASE...

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