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A body held completely immersed inside a...

A body held completely immersed inside a liquid experiences two forces: (i) `F_(1)`, the force due to gravity and (ii) `F_(2)` the buoyant force. Draw a diagram showing the direction of these forces acting on the body and state the conditions when the body will float or sink.

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(i) Two forces acting on the body are:
(a) Weight of the body (downwards).
(b) Upthrust of the liquid (upwards)

(ii) If weight `gt` upthrust, the body will sink
If weight `lt` or = upthrust, the body will float.
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  2. State the principle of floatation.

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