Determine the force in members GF, GD, and CD of the truss. State if the members are in tension or compression. Take that P1 = 11 kN, P2 = 24 kN, and P3 = 20 kN. (Figure 1)
a) GF: Tension, GD: Tension, CD: Compression
b) GF: Compression, GD: Tension, CD: Tension
c) GF: Compression, GD: Compression, CD: Tension
d) GF: Tension, GD: Compression, CD: Compression