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Natalija [7]
3 years ago
6

The vertical and horizontal poles at the traffic-light assembly are erected first. Determine the additional force and moment rea

ctions at the base O caused by the addition of the three 86-lb traffic signals B, C, and D. Report your answers as a force magnitude and a moment magnitude.
Engineering
1 answer:
konstantin123 [22]3 years ago
6 0

Answer:

1. Az=258 lb

2. My=3440 ft lb

3. ∑Mz= 0

Explanation:

∑ Fx= Ax=0

∑ Fy= Ay=0

∑ Fz= Az-86-86-86

Az=258 lb

∑Mx=86 X 31 +Mx=0

Mx=2666 ft lb

∑My=86 X 40 +My=0

My=3440 ft lb

∑Mz= 0

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See full question below

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