A runner's times for each section of a 400-meter race are shown below:
Results from 400-meter Race
Section Time
1st 100 m 11 seconds
2nd 100 m 13 seconds
3rd 100 m 14 seconds
4th 100 m 14.5 seconds
Which best describes the runner's motion over the course of the 400-meter race?
The runner's speed increased.
The runner's speed decreased.
The runner's speed stayed the same.
The runner's direction stayed the same.