If you run 2.5 miles in 20 minutes your average speed is 7.5 miles per hour.
Speed = Distance/Time = 5 metres per second
If you run 6 miles in 20 minutes, then you run 1/6th the mileage (1 mile) in 1/6th the time (1/6 x 20/1) 20/6 = 3 2/6 minutes = 3 1/3 minutes = 3 minutes 20 seconds 1 mile = 3 minutes 20 seconds
You divide 400m by 20s to get: 400 m / 20 s = 20 m/s (which is a moderate speed for a vehicle)
20 feet in 0,5 seconds ==> 40 feet per second 40 feet per second * 3 seconds = 120 feet
20 seconds
Walcott can run 100m in approximately 10.3 seconds, however he would most likely be quicker than the likes of Bolt over around 40m due to his acceleration. He could of chosen a career in sprinting but decided to continue with becoming a professional footballer.
5 seconds
20:58 ...Usain Bolt
speed = distance/time = 100 m / 20 sec = 5 metres per second.
Cheetahs only run in short bursts of 10-20 seconds, typically. They can not run longer than that.
For an 8 year old the 100m is not a sprint; it is an endurance event. Any child, male or female, who can out run their fellow children aged 8 will most likely become a very good middle distance runner when older. Basically, sprint times run at this age are meaningless. Taking part and trying to win is all that matters to kids of this age.
2.74 seconds..
25 mph
He can run 100m in 20 secs, Rapid initt? and it's still faster than Berbatov
an average one for 20-25 scs but the fastest one can run in 11scs
Average speed = distance/time = 20 metres per second.