. Determine the angle ” between the table and the plane face of the hemisphere in its equilibrium position, if a solid hemisphere of radius 3m weighing 30kN rests on its convex surface on a level table. A body weighing 3 kN is attached to a point in the circumference of the plane face of the hemisphere. In addition, a force of 5 kN is applied at an angle of 60° from the horizontal level as shown.

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Q: 600 mm 160 N Bo 40° 600 mm 150 mm 160 N C T20⁰ 40 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.