# Total Torque on triangle

1. Nov 12, 2006

### merced

"Two forces $$F_1$$ and $$F_2$$ act along the two sides of an equilateral triangle as shown...Point O is the intersection of the altitudes of the triangle. Find a third force $$F_3$$ to be applied at B and along BC that will make the total torque zero about the point O."

So the sum of the torques = 0. I don't know what to do first. Should I put the forces into component form and take the tangential component of the forces??

2. Nov 12, 2006

Unfortunately, I can't see the image, but putting the forces into components would be a good start.

3. Nov 12, 2006

### merced

Click on the image.

4. Nov 12, 2006