Mechanical Properties of Fluids
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Why do we make the bottom of a ship heavy? 

The bottom of a ship is made heavy to keep the centre of gravity of ship below the centre of buoyancy so that the ship is in stable equilibrium.

If the ship gets disturbed from the equilibrium position due to any disturbance in the water medium, the torque produced by weight and buoyant force brings the ship back to equilibrium position. 


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