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The vertical and horizontal poles at the traffic-light assembly are erected first. Determine the additional force and moment reactions
at the base O caused by the addition of the three 120-lb traffic signals B, C, and D. Report your answers as a force magnitude and a
moment magnitude.
27"
38'
27'
120 lb
120 Ib
120 lb
Answers:
O =
i
Ib
Mo =
i
Ib-ft

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The vertical and horizontal poles at the traffic-light assembly are erected first. Determine the additional force and moment reactions at the base O caused by the addition of the three 117-lb traffic signals B, C, and D. Report your answers as a force magnitude and a moment magnitude. 22 A 29' 22" B. 117 lb 117 Ib 117 Ib Answers: O = Ilb Mo = i Ib-ft
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