Distances:

a$=12$ft

b$=5$ft

c $=7$ft

h$=20$ft

Traffic light: W $=200$lb

Size:$1\mathrm{.}33$ ft wide x $3$ft high.

Warning: W$=350$lb

Size: $12$ft wide x $5$ft$.$

Obtain the total moment produced at the base $($point A$)$ of the column due to the effects of the wind and own weight of the $3$ traffic lights and the warning. Assume that the wind loads act perpendicular to the surface of each object. Note that your application point is the center of each rect angle. $($Apply vector product concept$).$ Note: To calculate wind load pressure add all the digits of your student number. This value is the equivalent in pounds$/$ft that acts on the surface of the traffic light and the notice. The resulting wind load is obtained by multiplying the wind pressure x surface area of each rectangle.

Calculate the angle formed by the axis AB and the axis AC$.$

Calculate the moment produced by the forces $($weights and wind loads$)$ acting on each surface with respect to the axis AB $($ mixed triple product$)$