Return-Path: Sender: (Marvin Kaye) To: lml@lancaironline.net Date: Fri, 14 Nov 2003 02:27:00 -0500 Message-ID: X-Original-Return-Path: 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 ; 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 Units Units Units

KE=3D1/2 MV**2

M=3D lbs Mass or Weight/ 32 ft/sec**2
V=3D speed in ft/sec or knts*1.7 

1000 lbs weight or force =3D  31.25 lbs mass
100 kts =3D 170 ft/sec

So   KE=3D1/2*(31.25 lbs mass)* (170 ft/sec)**2

        KE=3D 451,562 ft-lbs

KE=3D.044WV**2

W=3Dweight in lbs force
V=3D speed in kts

Again

W=3D1000 lbs force
V=3D100 kts

KE=3D.044(1000)*(100)**2

KE=3D 440,000 ft-lbs

Very close.  The difference is in the froce of gravity which is not exa= ctly 32 ft/sec**2.

I hope this helps.

Ray --part1_163.284fa449.2ce5aa08_boundary--