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>Since gravity is what causes a pendulum to move,
>neglecting air friction and differences in direction etc.,
>will the bob experience the same magnitude of
>acceleration though out it swing. I want to know if the
>change in speed is the same. Part of me says of course it
>is, but a smaller part wants to say the acceleration is
>greater at the bottom than at the top. I not sure my
>equipment is sensitive to detect those differences.
>
Howdy,
It is NOT gravity that causes a pendulum to swing; in the small angle
approximation, it's the horizontal component of the tension in the
string that makes the pendulum oscillate.
Good Luck,
--
Herb Schulz
(herbs@interaccess.com)