If you happen to fall out of an airplane

[IDemo]

20. Problem with that

In a free fall, you and the elevator are moving downward at the same rate, making you essentially weightless. Unless you're wearing special velcro shoes for your elevator ride, the instant you bend your knees to prepare for the jump, your feet will lose any pressure against the floor needed to propel yourself upward. But even if you began the fall in a crouching position, any true free fall would have you and the elevator moving too fast after only a few seconds for even an Olympic high jumper to make a noticeable difference in the impact speed.