The steel plate is 0.3 m thick and has a density of 7850 kg/m3. Determine the location o...

The steel plate is 0.3 m thick and has a density of 7850 kg/m³. Determine the location of its center of mass. Also determine the horizontal and vertical reactions at the pin and the reaction at the roller support. Hint: The normal force at B is perpendicular to the tangent at B, which is found from tan θ = dy/dx.