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Date: Tue, 25 Feb 2003 19:45:08 -0600Subject: Re: Here's your freakin equation (Re: [CR]The canard of lightweight - Simplification)

From: "Todd Kuzma" <tullio@theramp.net>

To: Brandon Ives <monkeylad@mac.com>, wayofftheback <wayofftheback@yahoo.com>

In-Reply-To: <7A47F7C3-492A-11D7-A5AA-00039356BD92@mac.com>

cc: classicrendezvous@bikelist.org

on 2/25/03 7:34 PM, Brandon Ives at monkeylad@mac.com wrote:

> Here's your really basic physics equation:

> F=M*A

> F= Force

> M= Mass (kg)

> A= Acceleration (m/s squared)

> Let's call A 5 and have it be static.

>

> 5*6.8(15 lb bike)= 34

> 5*9(20 lb bike)= 45

>

> We all know mass isn't really the same as weight, but for the basic

> question of if a 15 or 20 pound bike performs better it'll work. The

> 15 pound bike takes less force to move down the road, thus performs

> better.

Your equation illustrates the point perfectly. During most bicycle riding, the acceleration is zero. Now, do the math. Even during sprinting, the acceleration experienced on a bike is very small.

Todd Kuzma

Heron Bicycles

Tullio's Big Dog Cyclery

LaSalle, IL

http://www.heronbicycles.com/

http://www.tullios.com/