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In static fluidA. Resistance to shear stress is small.B. Fluid pressure is zero.C. Only normal stress can exist.D. Linear deformation is small.

Last updated date: 17th Jun 2024
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Hint: The fluid in which the net force is zero is considered to be static fluid. This means the fluid moving with constant velocity can be considered as static fluid. This also includes a stationary fluid. i.e. zero velocity. Non-ideal fluids (the fluids in which viscosity and turbulence present) will never flow with constant velocity due to the presence of non-zero shear forces. But in some cases, like the fluid in a tank moving with constant acceleration is considered as the static case with the assumption that the internal motion within the fluid is negligible.

Formula used:
${{P}_{static\ fluid}}=\rho gh$

${{P}_{static\ fluid}}=\rho gh$, where $\rho =\text{ density of liquid,}h=\text{height of water column}$. So the static fluid pressure is not zero.