Hydraulics and Fluid Mechanics in ME
An open tank containing liquid is made to move from rest with a uniform acceleration. The angle 0 which the free surface of liquid makes with the horizontal is such that (where a = Horizontal acceleration of the tank, and g = Acceleration due to gravity)

tanθ = a2/2g
tanθ = 2 a/g
tanθ = a/2g
tanθ = a/g

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Hydraulics and Fluid Mechanics in ME
A closed tank containing water is moving in a horizontal direction along a straight line at a constant speed. The tank also contains a steel ball and a bubble of air. If the tank is decelerated horizontally, theni) the ball will move to the frontii) the bubble will move to the frontiii) the ball will move to the reariv) the bubble will move to the rear Find out which of the above statements are correct ?

(i) and (ii)
(ii) and (iii)
(i) and (iv)
(iii) and (iv)

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