So, I have a question. Assume I am standing, and want to get to the ground as quickly as possible, squatting, etc no matter, assume I am dodging some sort of blow to the head. My question is, which way will be quickest? I know that from gymnastics that we throw our arms up to aid in momentum- you can demonstrate this by throwing your arms up on a trampoline and acquiring some bounce. But I wonder, which way will be quicker, as if we throw our arms up it should have an equal and opposite force but likely more complicated if the air is just involved. So I ask, what would be quicker, if standing and wanting to fall faster- throwing our arms up in an attempt to make us fall faster, or throwing them down in an attempt to increase our momentum? I would like some discussion of physics and why, so I can increase my understanding of the matter.