Question

1
A square plate of 2 m sides is immersed in water with one of the diagonal vertical. The top
edge of the plate is 1.2 m below the water surface. If the width of the plate is 1.5 m, find the
pressure force on one side (in kN)
(2 points)​

Answer 1

Thus the pressure in kilo newtons is 52.00 KN

Explanation:

• Diameter of plate = 1.5 m  
• Area of plane surface = A = (π/4) x 1.5^2
• Area of plane surface = A = 1.767 m^2
• Height "h" = 3.0 m
• Total pressure "F" =  ρ x g x h x A  
• Total pressure = 1000 x 9.81 x 3 x 1.767  
• Total pressure = 52002.81 N
• Pressure in Kilo newtons = 52.00281 KN