it's very difficult to answer.
there are lot of sources about cheetahs speed and acceleration, most of them claims that cheetah can accelerate at close to 1g, and reach speed of more than 90 kmh.
i have never seen an accurate measurement accept of the famous Sarah the cheetah 100m run at 6.13 sec.
now, it's true that the cheetah maybe capable of faster speeds but lets have this for our calculation.
the 6.13 run is 1.6 times faster than 9.58, which is human best.
now 40 yards dash best for human is somewhere around 4.24 if we divide it at that 1.6 we get 2.65 and that's what a cheetah will do more or less.
2.65 seconds.
how fast does mike sellers run the 40 yard dash how fast does mike sellers run the 40 yard dash
He ran a 4.5247853 40 yard dash
Really Fast!!
3.7
Yes you can run to fast if you run a 4.3 or lower 40 yard dash you are going to die.
3.9
10.5
4.34
4.24
4.4
4.4
4.0