I am reading the tutorial on physics classroom.com, and am at Meaning of Slope for a v-t graph. It gives data for an object experiencing an acceleration:

Time Position This is the corresponding chart for the object's velocity:
0 s 0 m Time Velocity 1 s 5 m 0 s 10 m/s 2 s 20 m 1 s 20 m/s 3 s 45 m 2 s 30 m/s 4 s 80 m 3 s 40 m/s 5 s 125 m 4 s 50 m/s

At 0 seconds the position of the object is 0 meters. If that is true, how is it possible that it has a velocity of 10 m/s if the object has not moved yet?