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From: hopp@nbs-amrf.UUCP (Ted Hopp)
Newsgroups: net.puzzle
Subject: Re: A Bicycle Puzzle
Message-ID: <178@nbs-amrf.UUCP>
Date: Mon, 3-Mar-86 18:22:57 EST
Article-I.D.: nbs-amrf.178
Posted: Mon Mar  3 18:22:57 1986
Date-Received: Sat, 8-Mar-86 04:45:20 EST
References: <97@tekchips.UUCP>
Organization: National Bureau of Standards
Lines: 22

> Flame me if you've seen this before, or if this is in the wrong
> newsgroup.  I hadn't seen it before I thought of it.
> 
> On a bicycle with both tires the same diameter, which wheel has a
> larger average angular velocity?  In more concrete terms, suppose
> you have one of those newfangled bicycle computer gizmos.   On which
> wheel should you mount the sensor to register more mileage?
> 
> Assumptions:  neglect variations in tire diameter due to tire
> compression.  Assume that neither wheel slips.  Treat this purely as
> a geometry problem (it is not a trick question).
> 
> One small hint:  I thought of this as I was grinding my way
> up a steep hill on my fixed gear.
> 
> I am willing to collect and summarize mail responses.

I guess the front wheel.  The back wheel cuts inside all the turns.

-- 

Ted Hopp	{seismo,umcp-cs}!nbs-amrf!hopp