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A boy walks a total distance of 210 km due North. His starting position is at 20 km and his final position is 34 km. If it takes him 3 hours and 20 minutes to make his trip, what is his velocity? What is his speed?

  • physics -

    his velocity= change displacement/time=(34kmN-20kmN)/3 1/3 hrs

    his speed= 210/ 3 1/3 km/hr

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