Objects of dead weight fall at 32ft per second squared according to newtons law of gravity. The impact of a goose definitely gave him a concussion similar to a Lawrence Taylor or Ray Lewis hit........ouch
They don't fall that fast, they accelerate that fast. 9.8 meters/second squared.
https://study.com/academy/lesson/newtons-laws-and-weight-mass-gravity.html
Either way it hurt...