A thin horizontal circular disc is roating about a vertical axis passing through its centre. An insect is at rest at a point near the rim of the disc. The insect now moves along a diameter of the disc to reach its other end. During the journey of the insect, the angular speed of the disc.

Options

A. remains unchanged
B. continuously decreases
C. continuously increases
D. first increases and then decreases

Explanation

From the rim to the center `M.I.` of system decreases and then increases hence the first angular velocity increases and then decreases.