Hey there, we are working on a unit in fisix on forces and torque equilibrium and right now I am stuck on some questions and I have no idea how to solve them, hence the reason I am here. Question 1: http://www.elarune.net/admins/josh/q21.jpg Again, I draw a blank and have no idea on how to solve this question. Question 2: http://www.elarune.net/admins/josh/q24.jpg For this question I know I would have to use vector additions. I think I would have to first just use T1, T2 and the Fg of that 200N ball. But then looking at the angles and such, I start to get confused and it seems to not work in my mind and then I could not find T3. So I also have no idea what to do. Final Question. We did a lab the other day in fisix where we had a 2x4 on a hinge on the wall an we had a rope with a scale on it to mesure the tension. Under the 2x4 we had two masses hanging down different distances from the pivot point. From that we had to find the mass of the 2x4. I was able to do it. Now in the lab write up, the teacher wants us to create a vector diagram with the vorces of Fg, Fn, T, F1 and F2. He says that Fg, F1, and F2 would create a line straight down, Fn would be perpindicular to that and then the T would finish up the triangle to make a right angle triangle. Well, I am doing this and I get a triangle, but it is not a right angled one and it does not look like his. First I did the triangle with forces and then I did it again with Torque but I still was not able to get the triangle to look similar. Thank you all for all your help.