Question

A disc with moment of inertia 2.4 kg m2
is rotating with angular velocity of 3.0 rad s-1
about a vertical axis passing through the centre of the disc. An object of mass 1.5 kg is
dropped vertically onto the disc without slipping at a distance of 30 cm from the axis of
rotation. By considering the object as a point mass, calculate the new angular velocity
of the disc and the object.

Answer 1

Explanation:

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