At 08:23 PM 5/30/2007, Palfreyman, Jim L wrote...
Now what about the reason why scales don't work on carpet...
They just don't work _well_, which is why fish evolved into amphibians
with legs and feet about 340 megayears ago (obligatory time-related
content).
Try this low tech analysis on for size.
Inertia at work: The ball is elastic and compresses sufficiently that all
the kenetic energy is changed into potential energy; Center of mass having
moved only slightly due to inertia. At this time the compression is
concentrated between the center
Since this is off topic I better give you the answer. It is nothing to
do with compression or friction, it's way simpler.
The ball does reflect off at 45 degrees and go straight up *with respect
to the club*. This is all to do with frames of reference (sound
familiar?). The club is moving around
The angle of incidence is relative to the surface normal, not the surface
itself. It's 0 degrees as the club face contacts the ball, not 45.
-- john, KE5FX
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