Re: Fwd: The Concrete Wheel

Judy Ann Brown (
Wed, 30 Apr 1997 17:05:41 -0400

100 MILES in diameter???
Would you see anything but concrete?
Why would you be sitting there watching this?
That is a 50 mile radius...rolling down the wide is this wheel.

My brian can't comprehend this size. and the window is only 20 feet on a
side..that's a ratio of 264 to 1.

I think you would see an arc, that would be the leading edge of the concret
wheel. Then a long time later you would see another arc as the wheel rolled on

I can't wait to read more about this ;-0

Responding to the message of <>
> I think that I know the answer but I will check and wait until others have
> time to think about it.
> ---------------------
> Forwarded message:
> To: RFORMAN639@AOL.COM (Ron Forman)
> CC: irafrdmn@AOL.COM (Ira Friedman), (Eric Forman),
> (Fred Sawin), (J.C.
> Thompson), (Brenda Timmerman), (Jan Smith),
> (Jack Arnow), (Frits Pleiter)
> Date: 97-04-30 05:10:33 EDT
> [This problem is proposed by Victor J. Katz in a book review in
> the College Mathematics Journal, May 1997.]
> Suppose you are sitting in a ground level room, facing a square
> floor-to-ceiling window that is 20 feet on a side. A huge solid con-
> crete wheel, 100 miles in diameter, is rolling down the steet and is
> about to pass right in front of the window, from left to right. The
> center of the wheel is moving to the right at 100 miles per hour. What
> is the view, from inside the room, as the wheel passes by?
> .

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Judy Ann Brown
Pleasant Valley Middle School
Brodheadsville, Pa 18322