Dead Scared

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WHEN A LARGE object falls from a great height, the speed at which it travels accelerates until the upward force of air resistance becomes equal to the downward propulsion of gravity. At that point, whatever is falling reaches what is known as terminal velocity, a constant speed that will be maintained until it encounters a more powerful force, most commonly the ground.

Terminal velocity of the average human body is thought to be around 120 miles per hour. Typically this speed is reached fifteen or sixteen seconds into the fall, after a distance of between five hundred and six hundred metres.

A commonly held misconception is that people falling from considerable heights die before impact. Only rarely is this true. Whilst the shock of the experience could cause a fatal heart attack, most falls simply don’t last long enough for this to happen. Also, in theory, a body could freeze in sub-zero temperatures, or become unconscious due to oxygen deprivation, but both these scenarios rely upon the faller’s leaping from a plane at significant altitude and, other than the more intrepid skydivers, people rarely do that.

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