The solid cylinder of length 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 figure is 2.7 kg m2.

Question

The solid cylinder of length 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 figure is 2.7 kg m².

14.9 kg/m³

7.5 $\times$ 10¹ kg/m³

7.5 $\times$ 10² kg/m³

1.49 $\times$ 10² kg/m³

Solution

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