You have done the activity and collected the data. You may have experienced something that you did not expect. Here are few questions for you to analyze what you have done.
 

1. Do you have same average speed in the different segments of the track? If no, then what could be the reason(s).

2. If you had only initial and end points, would your average speed give you any indication of the way your speed varied while you were running?

3. Is the speed maximum at the end point of the race?

4. Did you run so that your speed kept increasing from the beginning to end?

5. Did you take the same time to run each segment?

6. In the race, did you run with constant speed?

Also please do not forget put answers to your questions in the assessment box given below;
 

If the motion for a particular time interval is uniform, what is the possibility of the motion becoming non-uniform if the time interval is shortened?

In principle, we can make the time interval shorter and shorter. But in reality, there is a limit to what we can measure. So the time interval should always be clearly specified.

If we analyze the data of all the runners in your class, we can find out who the fastest runner is and who is fastest in each segment. The running example gives you an idea about one kind of non-uniform motion where the change in velocity is irregular.