A Disc with Moment of Inertia I₁ = 40 Kg $\omega$

question 18

Multiple Choice

A disc with moment of inertia I₁ = 40 kg.m² and angular velocity $\omega$ ₁ = 20 rad/s is dropped on to a stationary second disc along the axis of rotation.The second disc has moment of inertia I₂ = 60 kg.m².What is the angular velocity of the two discs?

• A)4 rad/s
• B)6 rad/s
• C)8 rad/s
• D)12 rad/s
• E)20 rad/s

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Definitions:

Zygote

The initial cell formed when a sperm cell fertilizes an egg cell, representing the earliest developmental stage of an embryo.

Graafian Oocyte

A mature egg cell that has completed its growth and is ready to be ovulated from an ovarian follicle.

Fertilized Oocyte

A female egg cell that has combined with a sperm cell, initiating the development of a new organism.

Granulosa

Cells surrounding the oocyte in the ovary, playing a key role in the development and hormone production of the ovarian follicles.