Asked by deb

in 1954 roger bannister became the first human to run a mile in less than 4 minutes. suppose that a runner on a straight track covers a distance of 1.00 mi in exactly 4.00 min.
What is the average speed in mi/h
What is his average speed in ft/s
what is his average speed in m/s

Thanks in advance.
Answered by Henry
a. Speed=1mi/4min * 1min/60s * 3600s/h =
15 mi/h.

b. S=15mi/h * 5280Ft/mi * 1h/3600s = 22
Ft./s.

c. S = 15mi/h * 1600m/mi * 1h/3600s=
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