Basic Statics problem with scalar components and force

[itsvt2013]

Homework Statement

Determine the scalar components Ra and Rb of the force R along the nonrectangular axes a and Also determine the orthogonal projection Pa of R onto axis a.

Homework Equations

n/a

The Attempt at a Solution

I tried setup rectangular coordinate but that didn't work well. I also tried to find the magnitude but that didn't seem to work either.

 

[itsvt2013]

Please guide me, thank you.

 

[ehild]

Show what you tried.

ehild