Hydraulics and Fluid Mechanics in ME
When a body is placed over a liquid, it will sink down if

Gravitational force is less than the up-thrust of the liquid
Gravitational force is equal to the up-thrust of the liquid
Gravitational force is more than the up-thrust of the liquid
None of these

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Hydraulics and Fluid Mechanics in ME
If a vessel containing liquid moves downward with a constant acceleration equal to ā€˜g’ then

the pressure throughout the liquid mass is atmospheric
the pressure in the liquid mass is greater than hydrostatic pressure
None of these
there will be vacuum in the liquid

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