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Remember that velocity is a vector quantity which means it needs two criteria to be defined; a magnitude, and a direction. When we discuss the magnitude of velocity, what we are talking about is the speed (30m/s, 45mph, etc). Those examples are examples of speed; it is only when we add a direction that it becomes 'velocity'.

So, the difference is: "25m/s" is a speed, but "25m/s east" is a velocity.

Speed (the magnitude of velocity) is calculated by taking the total displacement divided by the total time.

Speed=(distance travelled)/(time it takes).

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15y ago

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