this has got to be the one that I liked most of all...
If you do a vector analysis of the 2 primary forces you will find that they sum up to provide a force directly opposite the centripetal force and equal in magnitude. Thus the net force on the ball is zero, so there is no movement. This of course is after friction has reduced the oscillation of the ball around its final position to 0.
and as I mentioned much earlier on page 1
I'm not claiming that it really does work.
I just thought it would make a nice conversation piece.
they really do make nice conservation pieces and they seem
to be able to get peoples minds out of the fantasy realm and
back into the real world , I can see how a teacher could use
these as tools to present their students with problems that
need to be solved.
look at the thought that was generated in this thread , albeit
erroneous , thought still.
