To find the load when stress and area are known, we must:

When determining the load given the stress and area, it is important to use the fundamental relationship defined in mechanics known as the formula for stress. Stress is defined as the load (force) acting upon a material divided by the area over which that force is distributed. This relationship can be mathematically expressed as:

[ \text{Stress} = \frac{\text{Load}}{\text{Area}} ]

Rearranging this equation to solve for load gives:

[ \text{Load} = \text{Stress} \times \text{Area} ]

This clearly indicates that to find the load, one must multiply the stress by the area. This relationship is fundamental in engineering, especially in the design and analysis of materials, as it helps ensure that structures can handle the loads they are subjected to without failing. Understanding this relationship is crucial for making decisions about material suitability for various applications.