How long can a cheetah run?
Cheetahs can go from 0 miles per hour to 60 miles per hour in just 3.4 seconds. Cheetahs can reach a top speed anywhere in between 60 and 70 miles per hour, depending on the size of the cheetah. But, the interesting thing is that cheetahs can only run that fast for 20 to 30 seconds long. So, they can not sustain that speed for very long times. What is the reason they can not run that fast for very long? Well, because maintaining that speed for any longer than 20-30 seconds could have a very negative effect on their organs, and the cheetah could suffer from extreme over-exertion and over-heating.