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December 21, 2014

December 21, 2014

Posted by **leyfushie** on Saturday, July 27, 2013 at 8:58am.

- physics -
**leyfushie**, Saturday, July 27, 2013 at 9:09ama man walk 32.5m southward and 78m westward.if it took him 30 minutes to reach his destination.find his average speed?

- physics -
**Elena**, Saturday, July 27, 2013 at 11:20am88 km/h =88000/3600= 24.44 m/s

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average 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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