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Q:

What is the difference between speed and velocity?

A:

Speed and velocity are both terms that describe kinematics, or the motion of objects. Speed refers to an object’s change in distance with respect to time, whereas velocity refers to an object’s change in displacement with respect to time. Distance refers to "how much ground an object has covered" during its motion. Displacement refers to an object's overall change in position.

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Categories: Propulsion