A weight of 2 T is supported by a three bar truss. We want to find the forces in the three bars. (This truss is a 3-4-5 triangle so that sin and cos are either 0.6 or 0.8. See below Resolving vertically at the top we find 0.8F1 + 0.6 F2 = 2 This is Equation 1 Resolving horizontally at the top we find 0.6F1 = 0.8F2 This is equation 2 Resolving horizontally at the bottom left we find 0.6F1 = F3 a) Write each of the equations in th eform p.F1 + r.F2 + r.F3 = k b) Solve these questions simultaneously. I have no idea how to do this. I'll try and put up a picture of the question as soon as possible. Thanks.