Determine the critical height h of the water level where the concrete gravity dam starts to tip over. The density of concrete is c = 2.40 Mg/m 3 . Hint: Work the problem using a 1-m width of the dam....

Determine the critical height h of the water level where the concrete gravity dam starts to tip over. The density of concrete is

_c
= 2.40 Mg/m³. Hint: Work the problem using a 1-m width of the dam.

Determine the placement d of the pin on the 0.5-mwide rectangular gate so that it is on the verge to rotate clockwise (open) when waste water reaches a height h = 2.5 m. What is the resultant force acting on the gate?