Question

In the figure shown, forces of equal magnitude are applied to the two ends of a uniform rod. Consider $A$ as the cross-sectional area of the rod. For this situation, mark out the incorrect statements.

• A. The rod is in compressive stress
• B. The numerical value of stress developed in the rod is equal to $F/A$
• C. The stress is defined as internal force developed at any cross section per unit area
• D. None of the above

Answer 1

Answer: (D)

None of the above

All of the statements are factual statements. Stress is defined as internal force developed in the system per unit cross-sectional area and is not defined as force applied per unit cross-section area, although in equilibrium, stress is numerically equal to applied force per unit area.