[Artemis Webb]

No No...

That's just what Galileo was (legend has it)trying to prove when he dropped stuff off the Tower of Pisa. A feather only drops slower because of things such as wind current. After so much weight is added a 10 ball, dropped from 500 feet, will drop no slower than a locomotive would.

[Swordmaker]

A feather only drops slower because of things such as wind current.

That's why I specified "in atmosphere".

In atmosphere the terminal velocity of various shaped objects is determined by their cross sectional density and their resistance to air. Terminal velocity of a falling object in atmosphere is reached when the force needed to move the air out of the way of the falling object equals the force of gravity accellerating the object. This is why the terminal velocity of a skydiver spread out with arms and legs akimbo is slower than the terminal velocity of a skydiver of equal mass falling head-first with arms tucked in and legs tight.

In a perfect vacuum, there is no terminal velocity except for the limitations of the speed of light.

[the OlLine Rebel]

What you're talking about is acceleration, not final velocity. All objects in a vacuum would fall with the same acceleration - g (gravitational acceleration) = 32.2 ft/sec*2.