1. The problem statement, all variables and given/known data Determine the force in each member of the loaded truss. The force is positive if in tension, negative if in compression. I have attached an image of the problem 2. Relevant equations 3. The attempt at a solution I defined the positive y axis to be from B to A and hence the positive x axis is from B to C. To find AB I took the sum of the force in the y-direction on point B, my calculations are: 0 = AB - (224kg)(9.8)cos(37) AB = 1753.2 N This answer is correct. Then to find BC I found the forces in the x-direction at point B 0 = -BC + (224)(9.8)sin(37) BC = 1321.1 N However it says my answer is wrong. I suspect that it should be -1321.1 N but I have not tried this. I am stuck on finding AC. Some of the my classmates tried: (BC)cos(37) which gives me 1055 N but it says this is wrong. Any help would be appraciated.