- 5a_Videos.zip 
- 5a1_Centroid_of_an_area.mp4 
- 5a2_Centroid_composite_areas.mp4 
- 5a3_Locating_the_centroid_Example_1.mp4 
- 5a4_Locating_the_centroid_Example_2.mp4 
- 5a5_Moments_of_inertia.mp4 
- 5a6_Radii_of_gyration_and_Parallel_axis_theorem.mp4 
- 5a7_Dividing_the_area_into_sections.mp4 
- 5a8_Revision.mp4 
- 5a9_Revision_example_1.mp4 
- 5a10_Revision_examples_2_and_3.mp4 
- 5a11_Revision_example_4.mp4