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12 May, 12:23

Why do roads have speed limits rather than velocity limits

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  1. 12 May, 13:26
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    Speed is the rate at which something moves. Velocity is both speed and direction. Basically, having a velocity limit would mean only that you couldn't exceed a speed in a certain direction. Speed limits restrict speed in all directions because no direction is specified.
  2. 12 May, 14:38
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    Speed is the rate at which something goes, and velocity is the average acceleration, which means a car can go slow for a bit, and fast for a bit, and have a velocity of medium. Also, speed is much easier to measure.
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