not very many
An 11.17 minute mile equates to 8.64 kph
Roger Bannister
No one can run a mile in a minute....
15 miles/hour
4.286 mph (rounded)
A 15-minute mile equates to an average speed of 0.067 miles per minute.
An 11.17 minute mile equates to 8.64 kph
no one ever has
Roger Bannister
Was first to run a mile in under four minutes
Many runners have now run one mile under four minutes. The first to accomplish the feat was Roger Bannister in 1954, with a time of 3 minutes, 59.4 seconds. Since this time, the record has been broken many times. This link has the history of when the fastest mile time was broken: http://www.infoplease.com/ipsa/A0112924.html
Eisenhower
A minute
No one can run a mile in a minute....
15 miles/hour
mmm
At top speed, a cheetah can go one mile in one minute.