Guys,
I'm no mathemetician either, but, it seems to me that if a point on the front
of the tire exactly 90 deg from a point on the bottom of the tire is 1/8 in to
the side of the point on the bottom, when that point rolls to the bottom, the
center will be 1/8 in over on the pavement from where it started. This then
brings the point that was originally at the top of the tire to the front which
is now 1/8 in from the point on the bottom of the tire (which was originally on
the front of the tire). When the new front point rolls to the bottom (taking
the place of the point that was on the bottom of the tire which was originally
on the front of the tire) the tire has moved over an additional 1/8 in making
the total travel 1/4 in. Now, when the new point on the front of the tire
(which was previously on the top of the tire which was originally on the rear
of the tire) which is now 1/8 in. to the side of the new point on the bottom of
the tire ( which was previously on the front of the tire and
originally on the top of the tire) rolls around, the center of the tire is now
another 1/8 in. over making the total travel 3/8 in. Now, when the new point on
the front of the tire (which previously was on the top of the tire and was on
the rear of the tire before that and was originally on the bottom of the tire)
which is 1/8 in to the side of the point on the bottom of the tire (which was
previously on the front of the tire and on the top of the tire before that and
was originally on the rear of the tire) rolls around, the center of the tire is
now an additional 1/8 in. to the side of the new point on the bottom of the
tire (which was........................) Bottom line = 1/2 inch. Is this a
trick question?
Tom
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