Originally Posted by
noglider
Hang on, [MENTION=406505]HTupolev[/MENTION]. The rate of gravity is constant, irrespective of a body's mass. I know at least that much. In a vacuum, a feather and a bowling ball and a penny fall at the same rate. The bowling ball falls harder because of its mass, but it does not fall faster.
You're not riding in a vacuum. You're riding in air.
If you have two bowling balls with the same exact shape, and one is a real bowling ball while the other is as light as a feather, the former will fall a heck of a lot faster in atmosphere. The aerodynamic CdA of the two balls is the same, but the heavier one is getting pulled down with much more force.