To determine who was the better pitcher based on average speed, we need to calculate the average speed for both Lou and Jamie using the formula:
\[ \text{Speed} = \frac{\text{Distance}}{\text{Time}} \]
Given that the distance from the pitcher's mound to home plate is 15 m, we will calculate their average speeds using their recorded times.
For Lou's times:
1.2 s, 2.0 s, 3.1 s, 2.5 s
Total time for Lou:
\[ \text{Total Time} = 1.2 + 2.0 + 3.1 + 2.5 = 8.8 \text{ s} \]
Average time for Lou:
\[ \text{Average Time} = \frac{8.8 \text{ s}}{4} = 2.2 \text{ s} \]
Now calculate Lou's average speed:
\[ \text{Speed}_\text{Lou} = \frac{15 \text{ m}}{2.2 \text{ s}} \approx 6.82 \text{ m/s} \]
For Jamie's times:
1.7 s, 2.3 s, 3.0 s, 2.2 s
Total time for Jamie:
\[ \text{Total Time} = 1.7 + 2.3 + 3.0 + 2.2 = 9.2 \text{ s} \]
Average time for Jamie:
\[ \text{Average Time} = \frac{9.2 \text{ s}}{4} = 2.3 \text{ s} \]
Now calculate Jamie's average speed:
\[ \text{Speed}_\text{Jamie} = \frac{15 \text{ m}}{2.3 \text{ s}} \approx 6.52 \text{ m/s} \]
Conclusion: By comparing the average speeds:
- Lou's average speed: approximately 6.82 m/s
- Jamie's average speed: approximately 6.52 m/s
Therefore, Lou is the better pitcher with a higher average speed of approximately 6.82 m/s.
The provided options do not match these results, indicating they may need reevaluation or clarification. Based on the calculations, the best choice would reflect Lou's average speed, if available.