Fluid MechanicsHard
Question
A cylindrical vessel filled with water is released on a fixed inclined surface of angle q as shown in figure. The friction coefficient of surface with vessel is μ (< tan θ). Then the constant angle made by the surface of water with the incline will be : (Neglect the viscosity of liquid)


Options
A.tan-1 μ
B.θ − tan-1 μ
C.θ + tan-1 μ
D.cot-1 μ
Solution
figure shows forces acting on a ′particle′ on the surface, with respect to vessel.

(mg sin q & m mg cos q are pseudo forces).
tan φ= μ ∴ φ = tan-1 μ.
f is angle between normal to the inclined surface and the resultant force. The same angle will be formed between the surface of water & the inclined surface.
{Q free surface is ⊥ to the resultant force acting on it.}

(mg sin q & m mg cos q are pseudo forces).
tan φ= μ ∴ φ = tan-1 μ.
f is angle between normal to the inclined surface and the resultant force. The same angle will be formed between the surface of water & the inclined surface.
{Q free surface is ⊥ to the resultant force acting on it.}
Create a free account to view solution
View Solution FreeMore Fluid Mechanics Questions
A man of weight 40 kg floats on water in a lake. His apparent weight is...Two bodies are in equilibrium when suspended in water from the arms of a balance. The mass of one body is 36 g and its d...If the density of the material increase, the value of Young′s modulus...Water rises in a capillary upto a height h. If now this capillary is tilted by an angle of 450, then the length of the w...An open water tanker moving on a horizontal straight road has a cubical block of cork floating over its surface. If the ...