That gives you the magnitude of velocity, but it doesn't handle the directions that are involved.
Displacement over time:
Final position - Initial position Final time -Initial time
Displacement divided by time gives the average velocity of an object, which is a vector quantity indicating both speed and direction. The formula for average velocity is v a vg = Δ t Δ x . For example, walking 100 meters east in 5 seconds results in an average velocity of 20 m/s east.
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