an oil tank is in the shape of a right circular cylinder with a radius of r meters and its axis is horizontal. if the tank is half full of oil having mass density 750 kg per cubic meter, find r if the total force on one end of the tank due to liquid pressure is 8000 N

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Center of Gravity and Centroid

The term center of gravity indicates the position or location of a point about which the whole weight of a body or system is supposed to be concentrated, which means the whole weight of the body or system works through this point. It is closely related to mass distribution. For all positions of the body, the center of gravity would be a single point.