"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.