All the members of the planar truss (see figure), have the same properties in terms of area of cross-section (A) and modulus of elasticity (E).
For the loads shown on the truss, the statement that correctly represents the nature of forces in the members of the truss is:
- There are $3$ members in tension, and $2$ members in compression
- There are $2$ members in tension, and $2$ members in compression, and $1$ zero-force member
- There are $2$ members in tension, and $1$ members in compression, and $2$ zero-force member
- There are $2$ members in tension, and $3$ zero-force member
