1- Find the magnitude and point of application of the force acting on surface a-b in the following cases( which gate will be subjected to more force) (Tanke width 8ft): water water water 30ft 30 9ft 45 9ft 30ft 9ft Q3) Figure 1 shows the line (AB) of a given polygon with some buildings and fences. Sketch all the details and measurements, which should be taken, in order to draw a map for the shown site? A- "B Figure 1