Practice problem 5-8. Find the centroid for the shaded area. using integration we will find the x bar and y bar of the centroid for a composite shape.
First moment of area-round shapes.
A complete illustration for the first moment of area, for round shapes. Shapes include circles, tubular shafts, semi-circles.
How to determine the area and Cg for a circle? Use the integration of small area dA to get the value of the area and the Cg distance.