1. The problem statement, all variables and given/known data Determine all support reactions for the system shown. Indicate the resultant magnitudes and direction angles of the unknowns. Neglect thickness and self-weights of the members. 2. Relevant equations Equilibrium equations of a rigid body: 1. The moment about any point is zero: M_o = 0 2. The sum of the x components is zero: F_x = 0 3. The sum of the y components is zero: F_y = 0 3. The attempt at a solution First I drew a FBD to determine... 1. point A has two force components, A_x (-x), A_y (+y). 2. point D is a two force member, thus it has two components: Dcos(theta)(+x), Dsin(theta)(+y) 3. point C force is (2000kg*9.8m/s^2)(-y) I then plugged this info to three equations to find: 1. D = 7800 Nm / ( sin(theta)*m + cos(theta)*1.5m ) 2. D = A_x/cos(theta) 3. A_y = 19600 N - Dsin(theta) I don't have enough information to solve this problem. So I don't know what to do. Is it possible to solve this problem? What should I do?