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excerpt a pictorial representation of the motion of an object. it usually takes the form of a one- or two-dimensional plot showing the position of the object at defined times.

Excerpt

Generally, the times are equally spaced, and one can tell at a glance whether an object is remaining at a constant velocity, or if it is accelerating}acceleration. One can obtain the average velocity between two such marked positions by measuring the distance between these positions and dividing by the time interval between them.

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