First slide

Pressure in a fluid-mechanical properties of fluids

Question

A cylindrical block is floating (partially submerged) in a vessel containing water. Initially, the platform on which the vessel is mounted is at rest. Now the platform along with the vessel is allowed to fall freely under gravity. As a result, the buoyancy force

Easy

A

becomes zero
B

decreases
C

increases
D

information is insufficient

Solution

As the vessel is falling freely, the pressure at all the points in the liquids is same and equal to the atmospheric pressure and hence buoyancy
becomes zero.*** a freely falling body becomes weight less hence it can not displace the fluid and hence it will not experience buoyancy.

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