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When measuring sprinting times of students in a laboratory experiment, the tool that would likely provide the most accurate measurement is a **stopwatch**.
Here's why:
1. **Precision:** A stopwatch allows for precise measurement of time intervals, making it suitable for recording short durations like sprinting times accurately.
2. **Start-Stop Functionality:** With a stopwatch, you can accurately start and stop the timer, ensuring that you capture the exact time taken for the sprint without any delays.
3. **Reaction Time Consideration:** In sprinting, reaction time plays a crucial role. A stopwatch can help measure the time from the starting signal to the finish, providing a comprehensive view of the sprint performance.
In conclusion, when conducting experiments involving sprinting times, a stopwatch is the ideal tool due to its precision, start-stop functionality, and ability to account for reaction times.
