A disc is a spinning with an angular velocity ω rad/s about the axis of spin. T

Question

A disc is a spinning with an angular velocity ω rad/s about the axis of spin. The couple applied to the disc causing precession will be (where I = Mass moment of inertia of the disc, and ωP = Angular velocity of precession of the axis of spin)

Options:

A . (1/2).Iω²

B . Iω²

C . (1/2). I ω ωP

D . I ω ωP

Answer: Option D

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