The weight and pressure is greater as the depth of water increases. The wide base is better able to withstand such forces. As the weight and pressure is less near the surface, the top of the dam wall doesn't need to be so wide.
Earthen dams have very wide base and suitable to pervious foundation.
provided
Bases of buildings and dams are spread over a large area. Hence, the pressure exerted by the building on the earth's surface is less. thus reducing the risk of sinking.
Dams must hold back water of a certain depth, determined by the height of the dam. The pressure exerted by this water on the dam is dependent in part by its depth, since the base of the dam must be able to hold pressures exerted by the weight of all the water above the base. Since the pressure is greater at the base, the dam is broader at the base.
You need to measure how wide it is and the height of the triangle then multiply them together and the you get your answere.
Downstream of the dams the river would get narrow and shallow and upstream of the dams the river would get wide and deep. In between the dams would vary between the two depending on how much water each dam releases and lakes and ponds would probably form between the dams.
Area = base x height. 5 x 2=10 square yards
Area of a right triangle = 1/2 base x height Area = 1/2 10x6 Area = 30
since p=thrust/area,if a wide steel belt(more area) is provided ,it reduces the pressure exerted by the tank on the ground.so,it prevents the tank from sinking into the ground. You may mean the actual tracks. They are engineered of many steel links, often rubber covered to enable the tank to run on many surfaces.
Wide area network
The penalty area is 44 yards wide.
wide tyres have high grip and traction acc to physics pressure=force/area more the area less will be the pressure so to maintain stability on high loads trucks are provided with big tyres also truck is easy to stear on low pressure