# Differences Between Instantaneous Speed and Average Speed?

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What is the Differences Between Instantaneous Speed and Average Speed? Or, Distinguish Between Instantaneous Speed and Average Speed.

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 Instantaneous Speed Average Speed 1. Instantaneous speed is the distance travelled by a body per unit time at a particular point of the time (or infinitestimally small interval of time) 1. Average speed is the average distance travelled by a body per unit time over a certain measurable interval of time. 2. Instantaneous speed of a moving object can't be calculated by using the formula s / t because, here 't' should be immeasurably small tending to zero. 2. Average speed can be calculated from the measured values of distance and time.