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Physics - Fluid Question with Solution | TestHub

PhysicsFluidPressureMedium2 minQB

PhysicsMediumsingle choice

Water stands at a depth D behind the vertical upstream face of a dam as shown in the figure. The force exerted on the dam by water per unit width is (Neglect atmospheric pressure)

Options:

Answer:

Solution:

Force per unit width = average pressure x wetted height: $\frac{F}{b} = ⟨ P ⟩ \frac{A}{b} = \frac{0 + ρ g D}{2} \times \frac{D b}{b} = \frac{1}{2} ρ g D^{2}$ hence (B).

Stream:JEESubject:PhysicsTopic:FluidSubtopic:Pressure

⏱ 2mℹ️ Source: QB

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