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Physics 19 Online
OpenStudy (cp9454):

it is always true to state that speed is the magnitude of velocity. following the logic, can youdefine the average speed as magnitude of average velocity.

OpenStudy (cp9454):

@LolWolf

OpenStudy (anonymous):

That's not quite correct logic. Since the average velocity can be zero because it is not always true that the components of velocity have to be greater than zero in a coordinate system.

OpenStudy (cp9454):

@linda3

OpenStudy (linda3):

I'm sorry but i'm not that good at physics- sorry!:(

OpenStudy (cp9454):

@please elaborate

OpenStudy (anonymous):

That is, consider a car that takes a path from point A to point B and back to point A (where point A and B are some distance \(s\) away). Then, the car has an average velocity of zero (as it is back to its starting point), yet the car's speed is \(\frac{2s}{t}>0\).

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