### Topic Content:

- Equilibrium of Bodies in Liquids
- Archimedes Principle

It is a common experience that when an object is immersed in water, it becomes lighter whether it is wholly or partially immersed.

There is some upward force exerted by the liquid on an object when it is immersed in a fluid or liquid. This upward force experienced is called **upthrust**.

If the true weight of the object in air is W_{1} and the apparent weight in liquid is W_{2}, then,

Upthrust, U = W_{1} – W_{2}

Therefore the apparent weight when immersed in a liquid is;

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