Let's analyze the scenario provided step-by-step:
1. Initial Information:
- Hunter's initial velocity was 4.5 meters per second (m/s).
- Hunter's final velocity, at the end of his race, was also 4.5 meters per second (m/s).
2. Understanding Velocity and Acceleration:
- Velocity is the rate of change of position with respect to time and is measured in meters per second (m/s).
- Acceleration is the rate of change of velocity with respect to time and is measured in meters per second squared (m/s²).
3. Comparing Initial and Final Velocities:
- Since the initial velocity (4.5 m/s) and final velocity (4.5 m/s) are equal, we observe that there has been no change in Hunter's velocity during the race.
4. Inference on Acceleration:
- Acceleration is calculated as the change in velocity over time. In this case, the change in velocity is zero because there was no difference between the initial and final velocities.
5. Conclusion:
- Since there is no change in velocity, the acceleration must be zero.
Therefore, the statement that best describes Hunter's movement is:
- His acceleration is zero.
This indicates that Hunter maintained a constant velocity of 4.5 m/s throughout his race, meaning he neither sped up nor slowed down at any point in the race.
