how far does an object need to fall to reach terminal velocity
Terminal velocity Terminal velocity is the highest velocity attainable by an object as it falls through a fluid (air is the most common example). It occurs when the sum of the drag force (Fd) and the buoyancy is equal to the downward force of gravity (FG) acting on the object. Since the net force on the object is zero, the object has zero acceleration.[1]. ...
Parachuting The first parachute jump in history was made by André-Jacques Garnerin, the inventor of the parachute, on 22 October 1797. Garnerin tested his contraption by leaping from a hydrogen balloon 3,200 feet (980 m) above Paris. Garnerin's parachute bore little resemblance to today's parachutes, however, as it was not packed into any sort of container and did not feature a ripcord.[1] The first intentional freefall jump with a ripcord-operated deployment was not made until over a century later by Leslie Irvin in 1919.[2] While Georgia Broadwick made an earlier freefall in 1914 when her static line became entangled with her jump aircraft's tail assembly, her freefall descent was not planned. Broadwick cut her static line and deployed her parachute manually, only as a means of freeing herself from the aircraft to which she had become entangled.[3]