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A cubical block is floating in a liquid with one third of it’s volume immersed in the liquid. When the whole system accelerates upwards with acceleration of g/2.

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The buoyancy force on the block will change.

The pressure in the liquid will increased.

The fraction of volume immersed in the liquid will change.

The buoyancy force will increase by 50 percent.

answer is B, C, D.

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Detailed Solution

If the volume immersed initially is $V/3). Then \frac{V}{3} ρ g = mg (I)$
If the volume immersed when the system accelerates is V then
$V^{'} ρ (g + \frac{g}{2}) - mg = \frac{mg}{2} \Rightarrow V^{'} = \frac{V}{3}$

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