Back in the carl Lewis days it was common knowledge that top speed occurs around 50-60m. Thousands and thousands of athletes were bound by these old "limits". I always realized that Bolt is doing something different to allow him to continue accelerating further out. You just said his top speed occurs at 70m, whereas every one else peaked earlier and trying to hold on.
Needless to say, top speed depends on the wind speed during the race. If we want to have more precise analysis, the variation of wind speed must be shown.
This must be the LAVEG laser data. They used both laser and high speed cameras for the official IAAF report. If you use the high speed camera data you get slightly higher top speeds and a couple of intervals that are slightly faster, (either 2 exact 0.805 splits in a row or more likely, as is usually seen a single max 10m split meaning he ran a 0.8s then 0.81s between 60-80m) you end up with at least 12.42m/s or 44.7km/h, and possibly as high as 12.5m/s or 45km/h if the 0.8s split is true.
Good Work, ¿Which software allow me to do this great job?, because I want to repeat something like this with other videos. Thank you in advanced for your help.
