Derive an expression for the rotational inertia of the disk about the pivot. Pivot Pivul Figure > Figure Mech 3, A uniform disk of mass M and radius R is suspended vertically from pivot on its edge s0 that it is free t0 swing without friction, as shown in Figure above The disk is raised tO an initial angular displacement % with respect (0 the vertical, as shown in Figure 2 above. and released from rest The rotational inertia of the disk about its center of mass is MR? /2 . Express all algebraic answers in terms of the given quantities and fundamental constants. aS appropriale. (4) Derive an expression for the rotational inettia of the disk about the pivot