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## Homework Statement

http://img687.imageshack.us/img687/8767/meprob27.jpg [Broken]

If the resultant force acts along the positive

**u**axis, determine the resultant force and angle theta (red angle)

## Homework Equations

law of sines

pythagorean theorem, etc

trig

parallelogram, head to tail methods, something probably missing, etc

## The Attempt at a Solution

The resultant force comes from the 3 kN and 2 kN forces.

I try

-30 deg = tan

^{-1}(Fy / Fx)

Fy = (2 kN)(sin θ)

Fx = (3 kN) + (2 kN)(cos θ)

and I get stuck here, trying to go by just what I thought was usual trig / force vectors

If I have to draw another triangle to help solve, then I am not sure how.

Thank you.

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