conical vs horizontal motion

whats the difference in using conical vs horizontal motion of a pendulum to find time period?

Original post by YellowNinja

whats the difference in using conical vs horizontal motion of a pendulum to find time period?

Depends what "difference" you are looking for.
It's a different formula for T. Is that what you mean?

Conical
http://en.wikipedia.org/wiki/Conical_pendulum#Analysis
(normal swinging pendulum?)
http://en.wikipedia.org/wiki/Pendulum#Period_of_oscillation

The conical pendulum is motion in a horizontal circle.
The normal swinging pendulum moves in a vertical circle.

So if this is not what you mean can you explain your question further, thanks.