# Swirling Disc in Chocolate!

**Classical Mechanics**Level 4

It is a thin disc. The brown liquid is the viscous liquid.

**Details and Assumptions**:

Mass of Disc : \(M = 1 \text{ kg}\)

Radius of Disc : \(r = 2 \text{ m}\)

Height of Liquid layer : \(h = 0.15 \text{ m}\)

Coefficient of Viscosity : \(\eta = 20 \text{ S.I Units}\)

Initial angular velocity : \(\omega = \frac {10}{\pi} \text{ rad/s}\)

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