Question

A half-cylindrical (semi-circle cross section) solid object (specific gravity=1.5) is horizontally submerged along its diameter and rigidly fixed at the ocean floor 10m deep. The semi-circle has a diameter of 1m and a length of 3m. Assume the specific gravity of the ocean water to be 1.03 and the unit weight of freshwater to be 9.81kN/m³.

a. compute for the eccentricity of the cylinder.

b. compute for the centroid height of the semi-circle from the water surface elevation.

Answer 1