differentiate between speed and velocity
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HOMEWORK HELP > SCIENCE
Difference Between Speed And Velocity
What's the difference between speed and velocity?
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Quick Answer
Speed is how fast an object is moving. It is calculated by the displacement of space per a unit of time. Velocity is the rate at which an object changes position in a certain direction. It is calculated by the displacement of space per a unit of time in a certain direction. Velocity deals with direction, while speed does not.
Expert Answers
EMBIZZE eNotes educator| CERTIFIED EDUCATOR
The short answer is that velocity is the speed with a direction, while speed does not have a direction.
Speed is a scalar quantity—it is the magnitude of the velocity. Speed is measured in units of distance divided by time (e.g., miles per hour, feet per second, meters per second, etc.).
Velocity is a vector quantity—when giving the velocity we must specify the magnitude (the speed) and the direction of travel. For example you might drive 100km/hr (the speed) in a northerly direction.
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