A Sprinter Running A 100 Meter Race: Fill & Download for Free

I read an article a long ago on the same question but couldn't remember exact data so I used google a little.It is natural to say that Human is breaking the record of fastest running every year and no limits can be there. Usain Bolt, our beloved Jamaican Sprinter, ran of 100-meter race in 9.48 seconds only!(Yes, it's true! Most of us can't even go and turn on light switch in 10 sec!)It's possible that this guy can break his own record next year and that one the year after that and so on!Q : Isn't there any limit on it? Like 100 meters in 5 seconds or so?A : Yes, there is.It depends on Athlete's body features, like length of the legs, knuckle movements etcetera. But most importantly, it depends on how much force the Sprinter is applying on the Earth.The more you apply force on the earth, the more it will push you in the air. (3rd law, right?)Check out the red reaction force vector. Yes! The more the value of that red force vector the more earth will bounce you back.Problem is that the applied force is hugely goes in the upward direction (90% of it) while only 5% goes in the horizontal direction.So, yes. Unless someone finds a way to utilize total earth force in the horizontal direction, let's say upto 50% then may be he/she can finish the 100 meter race in 5 seconds. However, its not yet turned out to be possible.We humans are designed vertically and thus our tendency is to get pushed vertically by earth instead of horizontally. What about the other animals?Now this majestic animal, Cheetah, can run around 120 km/hour and can finish 100 meter race in around 6 seconds! Why? Because it is designed in the horizontal direction and all four legs of Cheetah pushes it in the horizontal forward direction. Sadly, it's not possible for humans.So, yes there is a speed limit for humans.How fast a human can run theoretically you asked?Nope. There is no physiological, mechanical way of calculating it but some analysts say that completing 100 m race in 9 seconds is too much fast!Source : Read this stuff in Gujarati Science magazine called 'Safari'Also,FYI: What Is The Limit To How Fast A Human Can Run?

Right now, I doubt it. Dude is a phenomenal athlete, but he’s built and trained for basketball - lots of explosive movements followed by short breaks. It’s rare for an NBA to go more than a minute without stopping, and even during live play there is a fair amount of standing and walking.(Of course, the moments of physical exertion are absolutely exhausting - there’s a reason even the best athletes typically play 75–80% of game minutes even with those breaks.)And speaking of LeBron’s build…Image from: This was the best night of all for LeBron James - The Boston GlobeHe’s built much more for a 100 meter race than a 1500. Dude is thick. At 6’9” and 275 lbs., he’s got a BMI of around 29. (Which means he’s borderline obese! Fancy that.)Meanwhile, let’s take a look at the men’s 1500 meter race from the 2016 Olympics.Image from: Nick Willis fails to repeat medal performance in 1,500 meters and more local Olympic resultsThose guys all have a much leaner build. Their average BMI is - ballpark guess - around 22 or so. That’s a big difference.More importantly, they have a higher ratio of slow-twitch muscle fibers. The 1500 meter isn’t a marathon, but it’s definitely a distance race. (I’d be curious if a top sprinter could break a 5-minute mile.)Now, those guys are the best milers in the world; they could spend the first minute of the race yawning aimlessly and still break 5 minutes. You don’t need to have their build to break 5 minutes, but it helps.All that said: give LeBron three months to train for this (and this alone) and I think he manages. His preparation and mental approach towards competition are superb, and I don’t think he’s that far off a 5-minute mile.

By definition a sprint is a short run, so your question is self-contradictory. Sprinting and endurance are separate issues. The mammal that can run for the longest time without fatigue is Homo sapiens. The mammal that can sprint the fastest is the cheetah..UPDATE 1/29/21: Here is a graph that shows why the question is actually fallacious and not precisely answerable, as we’ve discussed in the comments section. This shows the velocity of the world champion sprinter Usain Bolt from beginning to end of the 100 meter sprint. (Source: Usain Bolt MPH - Freelap USA)Notice that he was at or near top speed for only 60 to 70 m (top speed achieved at about 65 m). Any sprinter, human or animal, runs at substantially slower velocity building up to peak velocity, and peak velocity can’t be maintained for very long. By the end of that sprint, Bolt was back where he was one-third of the way into the course. Much as he probably would like to sustain that top speed and set an even higher record, I suspect the drop-off was not because he knew he had already far outrun the competition and he could back off a little, but more likely because he wasn’t able to sustain that top speed of ~12.5 m/s.That, I believe, will be true of any human or animal sprinter. Look at horse racing, where a jockey purposely hangs back in the pack for a while and doesn’t spur the horse to top speed until the last bit of the race. What part of that race would you label as “sprinting” for the horse?This is why, if you define sprinting as running at top speed, as some of the commenters do, it becomes meaningless to ask what animal can maintain that for the longest time. For Usain Bolt, top speed was maintained for only a second or two. He ran the entire 100 m in 9.58 sec, so simple math will show he maintained top speed for less than 1 sec. Probably for any other mammal as well, the answer to the original question will be less than 1 sec.This is why I think the question must be rethought and asked in the form of what animal can run a defined, relatively short distance (say, 100 m) in the shortest time. If you define sprinting as running at top speed, then Usain Bolt was sprinting for < 1 sec. That, of course, would strike anyone as an absurdity because everyone considers that entire race to be a sprint.