Keeping all other parameters constant, in case of a vertically immersed surface in a fluid, if fluid of density (s1) is changed by fluid of density (s2), then centre of pressure (c.p) in above two cases are related as:
Question 2
A vertical plate as shown below in immersed in water. Find the difference between centre of pressure and centre of gravity take free surface as reference
Question 3
Consider the following statements:
1). The centre of pressure is always above the centroid of any plane submerged surface that is not horizontal.
2). The total force acting on a submerged plane surface is the product of the area of the surface and the pressure at the centroid of the plane surface.
3). The horizontal component of hydrostatic force in any chosen direction on any area (plane or curved) is equal to the projection of the area on a vertical plane normal to the chosen direction.
4). The vertical component of force on a curved surface is obtained by calculating the weight of the liquid above and below the surface.
Of these statements
Question 4
An inclined plate 2 m long & 1m wide lies with its length at 45° to the surface of water and the nearest edge 1m below it. If the specific weight of water is 1000 kg/m3, then the total pressure on the plate (in kg) is approximately
Question 5
A tank contains 15 cm of oil (SG = 0.82) above 15 cm of water.
The force on the bottom of the tank will be ____________ N.
(Area of tank = 0.09 m2)
Question 6
An equilateral prism with side of triangle 20 cm are height 60 cm is half filled with water and is noted on its triangular face. The ratio of force on the bottom surface to the force on vertical surface is
Question 7
A circular plate of radius 0.5 m is vertically placed in water such that the centre of the plate is 1m below the free surface of the water. The position of the centre of pressure from free surface of water is ______ m.
