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This section contains 781 words(approx. 3 pages at 300 words per page) |

When an object moves, its position changes as a function of **time**, which is the definition of displacement. The distance (d) of the displacement is a scalar quantity and the displacement (d) of the object is a vector quantity, i.e. it has both a magnitude and a direction. If at time t the object is at position P and if it is displaced to position P at a time t, the displacement, d in the time interval t = t- t, is equal to P-P. The average **velocity** during the displacement is equal to v = d/t, another vector quantity. The distance traveled during the displacement divided by the time interval of the displacement is the average speed of the object, v = d/t, a scalar quantity. More useful when studying moving objects however, are the concepts of instantaneous velocity and speed...

This section contains 781 words(approx. 3 pages at 300 words per page) |