On Fri, 03 Apr 2020 09:35:34 -0700, greggballou wrote:

On Friday, April 3, 2020 at 7:55:35 AM UTC-4, Martin Gregorie wrote:
On Thu, 02 Apr 2020 17:10:31 -0700, towsked wrote:

On Thursday, April 2, 2020 at 4:11:39 PM UTC-7, Dan Marotta wrote:
If you fire an AK-47 and a .22 pistol simultaneously and
horizontally,
which round will hit the ground first?Â* There's quite a difference
in velocity between those two.Â* (A bored engineer/glider pilot
here.)


Dan, 5J

s=ut +½ g t^2

Both land simultaneously at 0.56 +/- 0.01 secs.
Is that only true in a vacuum? Or from a short height. Heavier objects
fall faster in the real world.

Its certainly true for a solid alloy object.

This nosecone is 40mm long, 23mm max diam and weighs 22g.

More important question if you had mounted firearms on a glider how much
would the glide angle be reduced by recoil? And does the effect change
at different speeds?

Ask a fighter pilot that, or (better) a Warthog driver. All I know,
second hand, is that a long squirt whether with .303s or 0.5s slowed a WW2
fighter down quite noticeably.


--
Martin | martin at
Gregorie | gregorie dot org