How Do You Calculate Tension and Compression in a Hanging Restaurant Sign?

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Homework Statement

a 25 kg restaurant sign hangs from a 1.25m horizontal pole with one end fastened at right angle to the brick wall of a restaurant and the other end fastened to a 2.5m cable . determine the force of compression actng on the pole and the tension in the cable.

Homework Equations

im totally clueless this is a past test question. i was thinking u could possible use the sin law

t1=t2sin(angle2)/sin(angle1) ?? this is where t is the tension. i would like help understanding how to calculate them.


Oh i drew the diagram so i know how it loks like

The Attempt at a Solution

 

[cristo]

Try looking at moments (torques).