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re: What would Usain Bolt's 40 yard dash time be?
Posted on 8/4/12 at 11:29 pm to SaintCajun
Posted on 8/4/12 at 11:29 pm to SaintCajun
quote:
(40m/4.485)=(36.576m/X)
That equation assumes uniform speed throughout. The better measure would be to take his 20m split and add that to ratio like you have shown. Still not perfect but much better. My guess is he was in the upper 4.18 range.
ETA: frick it. I ran the numbers:
Using the chart on page 3
40 yard = 36.576 meters = 30 meters + 6.576 meters
6.576 m = 7.19 yds
40 yard time = 30 meter time + 7.19 yard time
30 meter time = (0 to 30 m splits - reaction time) = 3.615s
7.19 yard time = average of 30 m and 40 m time divided by 10.94 yds multiplied by 7.19 yds = (.89s/10.94)x7.19 = .585s
3.615s + .585s = 4.200
someone can check my math and my assumption if they want
This post was edited on 8/4/12 at 11:53 pm
1
Posted on 8/5/12 at 12:46 am to C
Considering that 100 meter runners do not reach top speed until AFTER 40 yards--the comparisons are irrelevant!!!
The great sprinters are undoubtedly FASTER at their peak than football players at any time during the 40 yard time trial...
Compare the split times/converted to yards. NO ONE has ever run faster than Bolt between 60 to 80 meters!
And this topic should not be about 40 time--but about who is FASTEST!
Taking Bolt's top-end speed and working it into a self-start (contrast to a reaction-start in track) = a 40 time of 4.0.
Again, Bolt cannot reach this unprecedented speed in the first forty yards. This discussion completely hypothetical.
The great sprinters are undoubtedly FASTER at their peak than football players at any time during the 40 yard time trial...
Compare the split times/converted to yards. NO ONE has ever run faster than Bolt between 60 to 80 meters!
And this topic should not be about 40 time--but about who is FASTEST!
Taking Bolt's top-end speed and working it into a self-start (contrast to a reaction-start in track) = a 40 time of 4.0.
Again, Bolt cannot reach this unprecedented speed in the first forty yards. This discussion completely hypothetical.
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