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AP EAMCET · PHYSICS · Mechanical Properties of Fluids

Water stands upto height 'h' behind the dam as shown in the figure. The front view of the dam gate is also shown in the adjoining figure. Density of water is 'ρ' and acceleration due to gravity is 'g'. If atmospheric pressure force is also considered, the point of application of total force acting on the dam due to water above 'o' is_____  

  1. A h4
  2. B h3
  3. C h
  4. D h2
Verified Solution

Answer & Solution

Correct Answer

(B) h3

Step-by-step Solution

Detailed explanation

The force is applied is, F=12ρgh2b, So That the torque about the base of the dam due to this force can be considered to act with a lever arm equal to h3