[IAF.116~Jagr]

Don't forget that when something falls no matter the mass they land at the same time if dropped from the same altitude. This speed is the acceleration of Gravity which is 9.81m/s squared.

so after about 5 - 10 seconds of free fall they travel at the same speed. This does not take into consideration the shape of the object as that has todo with air resistance not gravity.

and now we know.