Originally Posted by
SteinarN
My idea with the "average" value is the same as yours, namely what value of constant G or acceleration would cause the object to travel the required vertical distance in the required time.
6000 feet in 20 sec gives zero G, free fall or approximately 10m/s2, 6000 feet in 18 sec gives your slightly larger value which is a slightly negative G.
Yes, though that doesn't seem to be relevant to what actually happened.
A "zero G" descent (or indeed a descent at any constant vertical acceleration value) follows a parabolic profile (ask any trainee astronaut). The actual descent profile, as far as it's possible to ascertain from FR24, was at an almost constant flightpath angle.