Return-Path: <marv@lancaironline.net>
Sender: <marv@lancaironline.net> (Marvin Kaye)
To: lml@lancaironline.net
Date: Fri, 14 Nov 2003 02:27:00 -0500
Message-ID: <redirect-2731306@logan.com>
X-Original-Return-Path: <Tubamanflies@aol.com>
Received: from imo-d04.mx.aol.com ([205.188.157.36] verified)
by logan.com (CommuniGate Pro SMTP 4.1.6)
with ESMTP id 2731101 for lml@lancaironline.net; Thu, 13 Nov 2003 22:46:22 -0500
Received: from Tubamanflies@aol.com
by imo-d04.mx.aol.com (mail_out_v36_r1.1.) id q.163.284fa449 (18707)
for <lml@lancaironline.net>; Thu, 13 Nov 2003 22:46:17 -0500 (EST)
From: Tubamanflies@aol.com
X-Original-Message-ID: <163.284fa449.2ce5aa08@aol.com>
X-Original-Date: Thu, 13 Nov 2003 22:46:16 EST
Subject: Re: [LML] Fw: [LML] Re: Braking Energy
X-Original-To: lml@lancaironline.net
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="part1_163.284fa449.2ce5aa08_boundary"
X-Mailer: 8.0 for Windows sub 6024
--part1_163.284fa449.2ce5aa08_boundary
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit
Units Units Units
KE=1/2 MV**2
M= lbs Mass or Weight/ 32 ft/sec**2
V= speed in ft/sec or knts*1.7
1000 lbs weight or force = 31.25 lbs mass
100 kts = 170 ft/sec
So KE=1/2*(31.25 lbs mass)* (170 ft/sec)**2
KE= 451,562 ft-lbs
KE=.044WV**2
W=weight in lbs force
V= speed in kts
Again
W=1000 lbs force
V=100 kts
KE=.044(1000)*(100)**2
KE= 440,000 ft-lbs
Very close. The difference is in the froce of gravity which is not exactly
32 ft/sec**2.
I hope this helps.
Ray
--part1_163.284fa449.2ce5aa08_boundary
Content-Type: text/html; charset="US-ASCII"
Content-Transfer-Encoding: quoted-printable
<HTML><FONT FACE=3Darial,helvetica><FONT SIZE=3D2 FAMILY=3D"SANSSERIF" FACE=
=3D"Arial" LANG=3D"0">Units Units Units<BR>
<BR>
KE=3D1/2 MV**2<BR>
<BR>
M=3D lbs Mass or Weight/ 32 ft/sec**2<BR>
V=3D speed in ft/sec or knts*1.7 <BR>
<BR>
1000 lbs weight or force =3D 31.25 lbs mass<BR>
100 kts =3D 170 ft/sec<BR>
<BR>
So KE=3D1/2*(31.25 lbs mass)* (170 ft/sec)**2<BR>
<BR>
KE=3D 451,562 ft-lbs<BR>
<BR>
KE=3D.044WV**2<BR>
<BR>
W=3Dweight in lbs force<BR>
V=3D speed in kts<BR>
<BR>
Again <BR>
<BR>
W=3D1000 lbs force<BR>
V=3D100 kts<BR>
<BR>
KE=3D.044(1000)*(100)**2<BR>
<BR>
KE=3D 440,000 ft-lbs<BR>
<BR>
Very close. The difference is in the froce of gravity which is not exa=
ctly 32 ft/sec**2.<BR>
<BR>
I hope this helps.<BR>
<BR>
Ray </FONT></HTML>
--part1_163.284fa449.2ce5aa08_boundary--