Wouldn't you rip apart from the ever-increasing speed caused by gravity long before you would dehydrate?
Well, ever increasing speed only occurs in a vacuum, in which case you'd never rip apart, because there'd be nothing opposing the acceleration and hence nothing to 'rip' you apart. In an atmosphere, the point at which the force of gravity is counteracted by wind resistance is called the 'terminal velocity'...the point at which you don't go any faster because the air resistance is so great, and assuming standard atmosphere and depending on your body position, is between 125 and 200 mph, or much less than required to rip flesh.