- #1

- 394

- 6

## Homework Statement

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 100-lb traffic signals

*B*,

*C*, and

*D*. Report your answers as a force magnitude and a moment magnitude.

## Homework Equations

Sum of all forces and moments =0

## The Attempt at a Solution

I got the Force at O right, but the moments im not sure how to sum them

Edit: solved by finding magnitude of M

Last edited: