BOLTS 40 Yard Dash

Saw this Article Usain Bolt would run the 40 in WHAT?! By Andy Behrens
After the olympics I wondered what his forty would be but you could not just take his time and figure out his forty (way longer distance and would not count the time for acceleration).
At the World Championships his first split time was taken, with start and a simmilar distance it is a lot more accurate. the answer: my jaw dropped = 3.76.... this is close to light speed.