A world class mile runner can run 1 mi in a time of 4 min Wh

A world class mile runner can run 1 mi in a time of 4 min. What is the runner

One needs to first find the speed of the runner in miles per hour.

Convert 4 minutes into hour units.

4/60 = 1/15 hr

Now take the distance of 1 mi and divide by the time

r=1mi/(1/15 hr)=15 mi/hr

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1 mile can be converted into meters.

First it is 5280 feet. Then this can be converted into inches by multiplying by 12

63360 inches. Recall there are 39.3 inches in one meter.

Therefore the number of meters in one mile is

1609.34 m

Now convert 4 minutes into seconds by multiplying by 60

240 seconds.

Finally divide distance by time

1609.34 m/240 seconds=6.71 m/s