Speed
In kinematics, the speed of an object is the magnitude of its velocity (the rate of change of its position); it is thus a scalar quantity. The average speed of an object in an interval of time is the distance traveled by the object divided by the duration of the interval; the instantaneous speed is the limit of the average speed as the duration of the time interval approaches zero.
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Famous quotes containing the word speed:
“No speed of wind or water rushing by
But you have speed far greater.”
—Robert Frost (1874–1963)
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