Re: [Phys-L] Video Analysis of Album Cover Flight and Glider Stall

[brian whatcott <betwys1@sbcglobal.net>]

This may provide an easily digestible text for students:
http://www.controlchat.com/physics-of-flight-the-stall/

Brian W

On 2/6/2020 11:09 AM, Paul Nord wrote:
> Based on my limited experience with paper airplanes, that looks reasonable
> to me.  A paper plane glides across the room until it slows to stall
> speed.  Then takes a sharp dive toward the floor.
>
> I googled "aircraft stall" and found this article from NASA:
> https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20170012206.pdf
> It's not about a glider.  But the stall of a real aircraft and automatic
> control systems.  See the diagram on page 32.
>
> Paul
>
>
>
> On Thu, Feb 6, 2020 at 10:22 AM Steinert, Jeff <steinert@goasa.org> wrote:
>
> > This is likely a question for JD, but all responses are appreciated:
> >
> > My students are using video analysis in Logger Pro to explain the flight of
> > a projectile of their own choosing. One has flown an album cover and
> > produced a rather complicated trajectory that can be viewed here:
> >
> > https://docs.google.com/document/d/1FCZhpNazYJajSGyo8tdHiWpq1mXD-kw3rHfC7Wi7Vsg/edit?usp=sharing
> >
> > I searched the net for a graphical depiction of the trajectory for a
> > stalling glider with no luck and I'd like to give my student a place to
> > start in her search for an explanation using the forces acting on her album
> > cover. Does the above plot resemble what you'd expect to see for a stalling
> > glider? Something else?
> >
> > Thanks,
> >
> > Jeffrey J. Steinert
> > Physics Instructor
> > 11th Grade Team Leader
> > Science Department Co-Chair
> > NHS Adviser
> >
> > Arizona School for the Arts
> > 1410 N 3rd St Phoenix, AZ 85004
> > *P* 602-257-1444 x322   *F* 602-252-7795
> > steinert@goasa.org   www.goasa.org
> >
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