# A Water Hazard!

Classical Mechanics Level 3

A closed cylindrical drum of Height $$H=2 \text{ m}$$, Diameter $$D = 1\text{ m}$$ contains water upto a height $$h = 1.5 \text{ m}$$. The cylinder starts rotating with a constant angular velocity $$\omega= 20 \text{ rad/sec}$$.The axis of rotation coincides with axis of cylinder and is vertical. Area(in sq.m) of the bottom of the container not covered by water is __$$\pi$$

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