Physics-
General
Easy
Question
A body floats in a liquid contained in a beaker, the whole system as shown falls freely under gravity. The up thrust on the body is
- Zero
- Equal to the weight of liquid displaced
- Equal to the weight of body in air
- Equal to the weight of immersed portion of body.
The correct answer is: Zero
In a freely falling body, (system) 
and up thrust = VirLgeff
Where {Vi = immersed volume rL= density of liquid}
Hence up thrust = VirL 0
=0
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