Question

If only two members form a truss joint and no external load or support reaction is applied to the joint, then the members

• A. Have infinite force
• B. Have equal but opposite force
• C. Are zero force members
• D. Have unequal forces

Hint:

Zero force members occur at unloaded joints connecting only two members.

Answer 1

The Correct Option is C

If two members meet at a joint without external load or support reaction, they carry zero force due to equilibrium conditions.