A study of construction accidents in India found that nearly half of all fatal falls happen at a height between 0 and 20 feet. The next largest group of fatal falls was between 21 and 40 feet. In other words, 20 feet is enough to be fatal, but fatal falls have occurred at even lower heights.
The higher you go, the higher the likelihood for fatality.
And Serbian flight attendant Vesna Vulović holds the Guinness world record for the longest survived fall — over 30,000 feet — after her plane blew up in the 1970s, though some cynics think the real height of Vulović's fall was a mere 2,600 feet. But how exactly do you survive such an extraordinary event?