The solid cylinder of length of 80 cm and mass M has a radius of 20 cm. Calculate the density of the material used if the moment of inertia of the cylinder about an axis CD parallel to AB as shown in the figure is 2.7 kg m2.
1
14.9 kg/m3
2
1.49 × 102 kg/m3
3
7.5 × 101 kg/m3
4
7.5 × 102 kg/m3