The formula to calculate speed from distance and time is:
\[ \text{Speed (yards/second)} = \frac{\text{Distance (yards)}}{\text{Time (seconds)}} \]
The 40-yard dash is a sprint covering 40 yards (36.576 meters). It is primarily used to evaluate the speed and acceleration of American football players, particularly for the NFL Combine.
Consider a runner who covers 40 yards in 4.5 seconds:
Using the formula:
\[ \text{Speed (yards/second)} = \frac{40}{4.5} = 8.89 \text{ yards/second} \]
This means the runner's speed is 8.89 yards/second.
