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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:

This is the corresponding chart for the object's velocity:

At 0 seconds the position of the object is 0 meters. And the velocity is 0 m/s which makes sense. After 1 second, the object travels 5 meters. The chart says that its velocity is 10 m/s at time equals 1 second. How is this possible if the object only travelled 5 meters within that second? Shouldn't the velocity be 5 m/s and not 10 m/s?

On physicsclassroom.com, an assignment gives data for an object experiencing acceleration:

This is the corresponding chart for the object's velocity:

At $0$ seconds the position of the object is $0$ meters. And the velocity is $0$ m/s which makes sense. After $1$ second, the object has traveled $5$ meters. The chart says its velocity is $10$ m/s at this time. 

How is this possible if the object only travelled $5$ meters within that second? Shouldn't the velocity be $5$ m/s and not $10$ m/s?