EM 306-Hayes-Fall 2007-Tests 1

EM 306-Hayes-Fall 2007-Tests 1 - 1. A speaker system is...

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1. A speaker system is suspended by the cables attached at D and E. The mass of the speaker system is 260 kg. Find the tension in the 2 cables and the internal force in member BD. t:::M"- -= JeoO<\I\j' "I.a( VV\/~"L ::. ~ 5{o \ f\ ~ ~;:'-~J ~ ~;:. -C.Jl;-t~t -" o ::-- Dj ~ £ :: - €'j . Zt ~C t~uc. ..-\'-(}. .J\.') :J =. _( _ ~~41.~:s-gS3. .1 . j -\ 1b1,~ Z Me ~0 . C. :: _ G,L\o;;2,3() :;. ~ U M) - D (,S M) - [( ~ rn ) J ~ W= ~;(s-(o\ J ~ ~ D:: D J ..:. i. .::. t: : :!>. J f~L2t<\, +;cMS Z+j:' 0 = -~S-Co' -\-'01-(. :,Dt-[::: ;;I.S-~) Z'm :0 (;z - c(.s-)-~(\) A(IMJ ::: DC. .sM)t(l~l"'\) F\- = 853.1 (.~) +( llDI,~'jr,'J.) . A- _= 3-? ~\ . .o,s D:: 853.1 f\ C = nol, 3 f\
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o~~-l f1 +o-r~~: ((ll- z..t ~ 0 ~..: _ ~ ~ ~ \ S - l\ 6 C-D> :2G>.~ ::-~84\.5 -Ar) C, co"!) ~~ ;:-~ 3\ <e. J 3 ('\ ~ tX::' 0 Ire.' + (-A~\<Ji) (. "" "Ie) Ac= IQ3;).,1 n ~ ~~ :::p.p C.~o. .) ) - fI'el (0'\8.<0) ~ .> I'l'::. e( . j4, "\€> ~c t ,f> '\ .:. . uo :::.
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EM 306-Hayes-Fall 2007-Tests 1 - 1. A speaker system is...

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