A body floats in a liquid contained in a beaker. The whole system as shown in figure falls freely under gravity…

Q: A body floats in a liquid contained in a beaker. The whole system as shown in figure falls freely under gravity. The upthrust on the body is

Numerical

(a)Zero

(b) Equal to the weight of liquid displaced

(c) Equal to the weight of the body in air

(d) Equal to the weight of the immersed portion of the body

Ans:(a)

Sol: In a free falling system geff = g – g = 0

Let Vimm = immersed volume

Upthrust = Vimm ρL geff

Upthrust = 0