[AR] Re: force detection

  • From: Ben Brockert <wikkit@xxxxxxxxx>
  • To: "arocket@xxxxxxxxxxxxx" <arocket@xxxxxxxxxxxxx>
  • Date: Tue, 1 Dec 2015 11:03:05 -0500

That is, accelerating the projectile as long as it's inside the barrel. Got
ahead of myself.

On Tuesday, December 1, 2015, Ben Brockert <wikkit@xxxxxxxxx> wrote:

Rocket in vacuum, no. Cannon in atmosphere, yes. A reasonably designed
cannon will be accelerating the projectile as long as it's in the
atmosphere. When it leaves the barrel it will encounter a deceleration that
will last until it slows to terminal velocity or impacts something.

On Tuesday, December 1, 2015, John Dom <johndom@xxxxxxxxx
<javascript:_e(%7B%7D,'cvml','johndom@xxxxxxxxx');>> wrote:

Just checking assumptions, please advise.

Am I right assuming a mercury droplet or loose ball-bearing will not move
forward inside a rocket in vacuum the instant the motor stops? It then only
might start floating.

Nor will such droplet move forward inside a cannon projectile after it
leaves the muzzle since on that instant push force has stopped. As to
during the short residence time inside barrel, it might fly forward I
reckon.

jd




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