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March 29, 2017

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A horse galloped a mile in 2 min 35s. What was its average speed in km/h?

  • physical science - ,

    change time to seconds. Then seconds to hours.

    change mile to km.

    avgspeed=distance/time=1mile/(2min35sec) or
    = 1mile/(2min+35sec)*1min/60sec=
    =1mile/(2*60+35)sec*3600sec/hr

    =1mile*1.609 Km/mile

    = 1.609km/155sec*3600sec/hr
    =about less than 40km/hr.

  • physical science - ,

    37.37

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