Posted by Saurabh on Tuesday, June 21, 2011 at 4:59am.
The body changed position, from one side of the circle, to the other.
displacement=changeposition/time=2PIr/20
there has to be a direction associated with displacement, my drawing has it West.
average speed: distance/time=2PIr/20
average velocity: 2PIr/20 West
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