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a man walked 32.5m souhward and 78m westward. if it took him 30 minutes to reach his destination.find his average speed?

  • physics -

    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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