Use FBD if needed plz

A machine part consists of a thin disk, a lplate and a hole as shown. The following data are given Disk material density = p = 2.7 gr/cm Disk: D Hole Radius = r thickness R = 40 cm negligible Thickness = 1 cm Plate: P X Plate a = 50 cm b = 40 cm Z C = 10 cm a b d = 40 cm Disk Hole: H r = 38 cm Find moment of inertia of this machine part with respect to axis Y. In calculaing the moment of inertia ignore the thickness of the disk. Hole Plate 2x side view