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|dw:1444160889035:dw|

F_2 = 186.3 / 98.8 / 47.7 / 72.2
beta = 303.6 / 123.6 / 236.4 / 56.4

what does 120 N R= 180 N
mean ?

Resultant = 180

The direction of the resultant is the same as the force 120

What two vectors are we adding to produce the resultant ?

It's the result of adding all the forces

The triangle is drawn

In mechanics they mostly draw the triangle on the line like this:|dw:1444162046880:dw|

ok, so we need the angle. what is it ?

|dw:1444162127993:dw|

We are looking for beta and F_2

Yeah

Will you use -beta ? as anti clockwise ?

I would write down each vector in components
and add them up.

I was told to use the anti-clockwise angle when giving out answers not breaking the force.

F_2SinBeta = 82.23
I have 82 as positive, what did I do wrong ?

no, we vectors that have magnitude r and direction beta.
we should just use r and beta.

If we used direction beta, we would use the anti-clockwise angle , right ?

I think using your method of solving them would be easier.

Yeah, I took " rectangular to polar" before, I think in imaginary numbers.

are you posting a different question ?

Yeah.