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Posted by **leyfushie** on Saturday, July 27, 2013 at 9:21am.

- physics -
**Elena**, Saturday, July 27, 2013 at 11:18amaverage SPEED = distance/time taken =(32.5+78)/30•60=0.062 m/s

displacement = sqrt(32.5²+78²)=84.5

average VELOCITY = displacement/time taken =84.5/30•60=0.047 m/s

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