Physics-
General
Easy
Question
A body floats in a liquid contained in a beaker. The whole system as shown falls freely under gravity. The upthrust on the body due to the liquid is
- Zero
- Equal to the weight of the liquid displaced
- Equal to the weight of the body in air
- Equal to the weight of the immersed position of the body
The correct answer is: Zero
Upthrust 
where, a = downward acceleration,
V = volume of liquid displaced
But for free fall a = g 
Upthrust = 0
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