Speed is what's known as a scalar quantity, which has only a number and a unit associated with it (55 mph.) Velocity is what's known as a vector quantity, which has a number, a unit and a direction (55 mph NW). If I'm driving at 55 mph NW and you're driving 55 mph SE, we have the same speed, but opposite velocities.
2006-12-03 07:08:50
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answer #1
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answered by Amy F 5
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Speed is a scalar quantity whereas velocity is a vector quantity. The speed of the London train from Edinburgh might be travelling at a spped of 60 miles per hour but its velocity would be 60 miles an hour southwards. Velocity is speed AND direction.
2006-12-03 07:11:45
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answer #2
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answered by Anonymous
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Velocity is aceleration with a direction. Like i am traveling west at 55 mph. Speed is how fast you are going. Like 55 mph. Acceleration is the change in speed or velocity.
2006-12-03 07:12:12
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answer #3
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answered by Anonymous
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Here are some breif definitions:
Speed is the distance traveled in a unit of time. For example: 30 miles/ hour
Velocity is Speed (distance traveled in a unit of time) and also the direction of the movement. So really its Speed in a given direction. For example: 30 miles/ hour, eastward.
Hope this helps! :)
2006-12-03 07:14:09
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answer #4
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answered by litz 3
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the difference is that...
velocity- a certain speed in a certain direction (when you change velocity that is acceleration)
speed-how long it takes you to get to one place at a certain distance
2006-12-03 07:12:05
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answer #5
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answered by hatsuharu93 2
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no strictly speaking they're not the same
the motion of an object has two attributes, that is, speed AND direction!
speed is just the magnitude, the numerical value of velocity
2006-12-03 07:11:23
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answer #6
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answered by town_cl0wn 4
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Velocity is a function of speed and direction. Weird, huh?
2006-12-03 07:14:58
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answer #7
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answered by sixgun 4
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Speed is how fast you're going. Velocity is how fast you're going in a certain direction.
2006-12-03 07:11:51
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answer #8
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answered by sonicwiifan 2
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both are references to the ratio of (distance) / (time)
they are the same, but scientist tend to use velocity more often than speed (pilots use air SPEED, but formulas use velocity )
2006-12-03 07:11:13
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answer #9
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answered by Brian D 5
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It is also worth notting that a scaler and a vector do no work mathematically the same way. With vectors, you have to keep count of direction.
2006-12-03 07:11:03
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answer #10
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answered by DB 3
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