Question

Net hydrostatic force acting on a gravity dam is F. If the coefficient of friction at the base of the dam is doubled, the new hydrostatic force on the dam will be?

• A. 4F
• B. 2F
• C. F
• D. 0.5F

Answer 1

The correct option is C F

$\text{Hydrostatic force}=\frac{1}{2}{\gamma }_w{H}^2$
It depends on the unit weight of water ${\gamma }_w$ and the height of water (H) only.