(D) When a bucket is in free fall, it experiences an acceleration of $g$ downwards. The water inside the bucket also experiences the same acceleration

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(D) When a bucket is in free fall, it experiences an acceleration of $g$ downwards. The water inside the bucket also experiences the same acceleration $g$ downwards. Therefore, the effective gravitational force acting on the water relative to the bucket becomes zero. Since the pressure at any depth $h$ in a fluid is given by $P = P_{atm} + \rho g_{eff} h$, and here $g_{eff} = 0$, the pressure at the hole becomes equal to the atmospheric pressure. Consequently, there is no pressure difference to drive the water out of the hole, and the water stops flowing.

Class 11 Physics Fluid Mechanics and Surface Tension Velocity of Efflux and Torricelli's law

Medium

Water flows out of a hole on the side of a bucket and follows a parabolic path. If the bucket falls freely under gravity, ignoring air resistance, the water flow

A
follows a straight line path relative to the falling bucket
B
follows a parabolic path relative to the falling bucket
C
decreases but continues to flow
D
stops flowing

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Fluid Mechanics and Surface Tension

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Velocity of Efflux and Torricelli's law

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MediumAP EAMCET 2024

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$A$ wide vessel with a small hole at the bottom is filled with two liquids. The density and height of one liquid are $\rho_1$ and $h_1$ and that of the other are $\rho_2$ and $h_2$ $(\rho_1 > \rho_2)$. The velocity of the liquid coming out of the hole is:

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Water flows out of a hole on the side of a bucket and follows a parabolic path. If the bucket falls freely under gravity, ignoring air resistance, the water flow

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