# How fast can a human being run?

1. 79
pinappuposted 6 years ago

How fast can a human being run?

Many types of animals can run very fast. Many birds can fly too fast. How about us? the human beings?

2. 67
MickSposted 6 years ago

A one Usian Bolt from Jamaica held in, I believe 1996 or 1999, perhaps still does, the world record for the 100 meters at 9.58 secs.
I've heard it said that man is the fastest accelerating animal.

1. 79
pinappuposted 6 years agoin reply to this

Is it possible? "man is the fastest accelerating animal?"

2. 67
MickSposted 6 years agoin reply to this

I don't know the veracity of that statement, only that I have heard that man is the fastest accelerating animal. Or should that be mammal?

3. 73
wandererhposted 6 years agoin reply to this

I'm quite sure it isn't man.  According to the following link, it's either the cheetah or greyhound:

4. 67
MickSposted 6 years agoin reply to this

Sorry wandreth, that site doesn't indicate that, there is part of in that refers to the speed of theses animals, but I can't find reference to acceleration.

5. 73
wandererhposted 6 years agoin reply to this

We have Bolt = 0 - 44.73kph over 60m, greyhound = 0 - 70 kph over 30m and cheetah = 0 - 96.54kph in 3sec.  Calculating the acceleration, we have Bolt = 1.287 m/sec2, greyhound = 6.301 m/sec2 and cheetah = 8.939 m/sec2.  Cheetah wins.

3. 79
leakeemposted 6 years ago

From MickS' answer that's 10.43841meters per second average. That's 37.5783kph average. Half the speed of a cheetah. But that's on the outer extremes. I think most people can do around 25-30kph.

1. 79
pinappuposted 6 years agoin reply to this

I think it is not possible for the common man to maintain 25/30 km/h speed for more than 15 to 20 seconds. What do you think?

2. 79
leakeemposted 6 years agoin reply to this

yes, because that's sprinting speeds.

3. 67
MickSposted 6 years agoin reply to this

The question didn't enquire of stamina, only how fast.

4. 73
wandererhposted 6 years ago

As MickS said, Usian Bolt ran the 100m in 9.58 sec, which translates to a speed of 37.58 kph.  But during the 60m - 80m stretch, Bolt averaged a speed of 27.8 mph or 44.73 kph, which is perhaps the fastest a human can run at the present time.

http://www.independent.co.uk/news/scien … 60718.html

1. 79
pinappuposted 6 years agoin reply to this

44.73 kph ! cool!Rightly Usian is "bolt".

5. 61
Diane Woodsonposted 6 years ago

15 mph...best guess!!! I hope i am close.

1. 79
pinappuposted 6 years agoin reply to this

How fast will you run if you saw a 100 pound size diamond is on the road to pick up and own if you beat others in race?

6. 51
Vegas Eliasposted 6 years ago

It all depends on what makes the human run. I feel he will run the fastest if he was being chased by a lion.

1. 79
pinappuposted 6 years agoin reply to this

He will run much more faster if you promised him to give \$1 million if he can defeat a race horse by running only.

7. 0
JThomp42posted 6 years ago

I know running a 4 second flat forty yards is pretty fast? That's 10 yards per second. Hopefully someone is better at math than me?

working