Repeat Prob. 268 is the resultant is 390 lb directed down to the right at a slope of 5 to 12 passing through point $A$. Also determine the $x$ and $y$ intercepts of the missing force $F$.
![diagram](./images/268-269-three-forces.png)
Repeat Prob. 268 is the resultant is 390 lb directed down to the right at a slope of 5 to 12 passing through point $A$. Also determine the $x$ and $y$ intercepts of the missing force $F$.