Please help me these confusions I have.
If I tilt a cuboidal container containing an ideal fluid (non viscous liquid), does a shear stress develop on the liquid due to some shearing force acting parallel to bottom of the container? If so, what causes this shear?
If a container containing a liquid is horizontally accelerated, its surface gets slanted and the pressure on every point of the free (open) surface is the same as the atmospheric pressure, but shouldn't the pressure on this open surface be different along the direction of motion so that the net pressure difference causes it to accelerate in that direction?
What if I consider a thin tube along the surface then there must a pressure difference on the two ends of the thin tube(hence on the two points of the open surface where the ends of the tube are) because it has an acceleration of $(a\cos x)$, (where $x$ is the angle the surface makes with the horizontal)?