For the truss in the following figure (supports A and D are hinge type) the forces in member CD and CB are, respectively ______ and _______.
1
10 (compressive); zero
2
10 (tensile); 10 (compressive)
3
zero; 10 (tensile)
4
10 (tensile); zero
For the truss in the following figure (supports A and D are hinge type) the forces in member CD and CB are, respectively ______ and _______.