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1 miles = 5280/3 yards = 1760 yards.

50 yards / 1760 yards/mile ~= 0.02841 miles

7.2 seconds / 3600 seconds/hour ~= 0.002 hours

0.02841 miles / 0.001833 hours ~= 14.2 miles per hour

In general divide 102.27 by your time in seconds to get mph.

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15y ago

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