what is the Tensions?

Question

a 50.5 kg traffic light hangs from two cables which are at the angles shown.Calculate the tensions in the two cables.
http://i219.photobucket.com/albums/cc83/melan520/10-14-07_1249.jpg

Answer 1

Since this is static, all forces sum to zero in any direction.

Looking at the vertical first

T2*sin(78)+T1*sin(33)-50.5*9.81=0
and
T2*cos(78)-T1*cos(33)=0

T2=445 N
T1= 110 N

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