Physical Pendulum Period

1. Jun 16, 2006

sophzilla

"A physical pendulum consists of a meter stick that is pivoted at a small hole drilled through the stick a distance d from the 50 cm mark. The period of oscillation is 5.27 s. Find d."

I know that the period for a physical pendulum is T = 2pi * sqrt (I/mgL).

I'm really stuck on how to start out this one. Should I define the center of mass first? Any help would be appreciated. Thank you.

2. Jun 16, 2006

Andrew Mason

What is the mass in the pendulum? Can you treat the mass as a point mass located some distance from the fulcrum? If so, where would it be? (Hint: what is the moment of inertia of the metre stick?. I think you are to ignore the width of the metre stick).

AM