(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

See attachement.

2. Relevant equations

3. The attempt at a solution

I would be able to solve it if I could somehow find [tex] \phi [/tex] to describe the angle of F3 relative to the positive x axis. Can anyone see how to solve that specific angle?

Then and can simply sum as follows

[tex]

F_{x} = F1cos(\theta) + F2cos(\alpha) + F3cos(\phi)[/tex]

and

[tex]

F_{y} = F1sin(\theta) + F2sin(\alpha) + F3sin(\phi)[/tex]

and

[tex]

F = \sqrt{F_{x}^{2} + F_{y}^{2}}[/tex]

Then let [tex]\beta[/tex] be the resultant angle,

[tex] \beta = tan^{-1}(\frac{F_{y}}{F_{x}} ) [/tex]

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# Homework Help: Magnitudes, Resultant Force (missing angle!)

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