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Q:

What is the difference between speed and velocity?

A:

Speed is scalar, while velocity is a vector.

 

Speed is distance over time, while velocity is displacement over time: which means the distance from the start, not the total distance travelled. So if you run around a 100 meter track in one minute, your speed would be 6 km per hour, while your velocity is zero, because you came back to the start. 

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Categories: Propulsion