Simultaneous Equations: Solving for θ with FA and NA

AI Thread Summary
The discussion centers on solving two simultaneous equations involving FA and NA, specifically FA - 10sinθ = 0 and NA - 10cosθ = 0, with the relationship FA = 0.15NA. The user has attempted to substitute FA into the first equation but is uncertain how to isolate θ. Suggestions include solving the second equation for NA and substituting it back into the first equation to simplify the problem. The goal is to arrive at a straightforward trigonometric expression for θ. The conversation emphasizes the importance of substitution and manipulation of equations in solving for the variable.
aaronfue
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Homework Statement



I have two eqs. but am stuck on solving them.

Homework Equations



FA - 10sinθ = 0
NA - 10cosθ = 0
Where FA = 0.15NA

The Attempt at a Solution



I've substituted the 0.15NA into the first equation but am still not sure how to get θ? I'm sure its something easy that I'm just drawing a blank on.
 
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Solve the second equation for NA, substitute into first equation (where you've already replaced FA with 0.15NA). Should boil down to a simple trig expression.
 

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