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http://i1053.photobucket.com/albums/s463/Popa911/1cc85138.jpg

## Homework Statement

Three cables exert a force on a bracket (as shown in the photo) F1=300N, F2=500N and the resultant is 400N and 30° downward from x.

## Homework Equations

the equation i used to solve was Fr=F1+F2+F3 rearranged to get F3= Fr - F1 - F2

## The Attempt at a Solution

I got the i and j components and put them together as follows.

F3= (346.41i -200j) - (180i + 240j) - (500i)

F3 = -334i - 440j

this answer is incorrect as it would mean that cable F3 is going through the wall? Any help would be appreciated, thanks.