distance-time curve

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A smooth line or curve which best fits the points on a graph in which distance is plotted on the y-axis and time on the x-axis. The distance-time curve enables changes in speed (e.g. during a 100-m race) to be identified since the slope (gradient) at any point of time gives the speed of the body at that time. See also instantaneous speed.

Subjects: Sports and Exercise Medicine.

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