What mathematical expression is used to describe the conditions of a runner's average performance across different terrains?

The expression that accurately describes a runner's average performance across different terrains is rooted in the relationship between speed, distance, and time. Speed is defined as the ratio of distance traveled to the amount of time taken to cover that distance. Thus, the formula Speed = Distance/Time captures this relationship clearly.

When a runner traverses different terrains, their overall speed can vary based on factors such as incline, terrain roughness, and personal conditioning. By using the formula, one can calculate the average speed by measuring the total distance run over the total time taken, providing an effective metric for average performance.

This concept is essential for understanding the dynamics of running performance under varying conditions, and the expression directly relates to how effective speed is determined based on distance and time—key components of any runner's performance analysis.