Lecture 22: Act 2 Physical Pendulum a pendulum is made by hanging a thin hoola-hoop of diameter D on a small nail What is the angular frequency of oscillation of the hoop for small displacements? (IcM mR2 for a hoop) pivot(nail a D (b) D VD 2D Physics 121: Lecture 22, Pg 9Physics 121: Lecture 22, Pg 9 Lecture 22: Act 2 Physical Pendulum A pendulum is made by hanging a thin hoola-hoop of diameter D on a small nail. What is the angular frequency of oscillation of the hoop for small displacements ? (ICM = mR2 for a hoop) (a) (b) (c)  = g D  = 2g D  = g 2D D pivot (nail)