 0.1667 0.00618 I     A d 2 2 2 2 G G 0.1667    0.00618  20.028  0.0062  0.2408m I 4 Substituting in Eq.1, The centre of pressure from free surface of water h  y  I g A y 0.2408  0.444  h  0.6252m 3 0.444 Q 4Derive the expression for total pressure and centre of pressure on a vertical plate submerged in a static liquid (Dec 2013,July 2015) Ans:Vertical Plane surface submerged in liquid Consider a vertical plane surface of some arbitrary shape immersed in a liquid of mass density as shown in Fig.  y dy Let A = Total area of the surface = Depth of Centroid of the surface from the free surface y G = Centroid of the immersed surface C = Centre of pressure = Depth of centre of pressure h
I  0.1667  0.00618   A d 2  G G 2 2 2 I  0.1667  0.00618  20.028  0.0062   0.2408m 4 Substituting in Eq.1, The centre of pressure from free surface of water h  y  I g A y h  0.444  0.2408  0.6252m 3 0.444 Q 4Derive the expression for total pressure and centre of pressure on a vertical plate submerged in a static liquid (Dec 2013,July 2015) Ans:Vertical Plane surface submerged in liquid Consider a vertical plane surface of some arbitrary shape immersed in a liquid of mass density  as shown in Fig. y dy Let A = Total area of the surface y = Depth of Centroid of the surface from the free surface G = Centroid of the immersed surface C = Centre of pressure h = Depth of centre of pressure
solved-papers.docx