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A person walks 8.4522x10^1 m East, then turns around and walks 7.8409x10^1 m West. The total time to walk this distance was 8.7343x10^2 s. What is the speed of the walker, expressed to 3 significant figures?

  • Physics - ,

    Speed is scalar! therefore, it has magnitude, but no direction.

    Add the two distances and divide by time!

  • Physics - ,

    ok and if i have more then two distances then do i add all 3 then divide??

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