[Phys-L] Re: Area vector

[Charles Reno <cblreno@ADELPHIA.NET>]

Considering the definition of pressure and rewriting: F = P*A
But P is non directional, i.e. a scalar. Thus the F equation has type scalar
* vector which gives a vector in the same direction.Note F is out because is
out when you consider a balloon.
cr

----- Original Message -----
From: "Kilmer, Skip" <kilmers@GREENHILL.ORG>
To: <PHYS-L@LISTS.NAU.EDU>
Sent: Tuesday, March 29, 2005 3:29 PM
Subject: Re: Area vector


> Parallel to the plane is ambiguous?
> skip
>
> -----Original Message-----
> From: Forum for Physics Educators [mailto:PHYS-L@list1.ucc.nau.edu]On
> Behalf Of Tony Wayne
> Sent: Tuesday, March 29, 2005 13:28
> To: PHYS-L@LISTS.NAU.EDU
> Subject: Area vector
>
>
> Does any one know why the "area vector" for a surface is defined as
> being normal to the plane of the surface instead of parallel to the
> plane of the surface?
> -Tony
> = = = = = = = = = = = = = = = = = = = = =
> Tony Wayne
> twayne@albemarle.org
> http://physics.k12albemarle.org
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