Tension with two strings and angles

Ckrueger11

Can someone help me with this problem? I am stuck.

So far I have:


net Force (x) = T1cos30 - T2cos(θ) = 0

net Force (y) = T1sin30 + T2sin(θ) - 120N - 400N = 0


From equation 1 ---> cosθ = (T1cos30)/T2


I attached a picture of the problem.

Not sure my y-equation is correct

How do I find T1 & T2

Attached Thumbnails

 

rock.freak667

Split the two tensions into x and y components and then apply the laws for equilibrium:

∑F_x=0
∑F_y=0
∑M=0

Ckrueger11

I set the equations up and set them equal to zero but I don't know how to solve them for any of my unknowns.

rock.freak667

You have 2 equations with 3 unknowns, you need to take moments about a point to get a third equation.