Books 

• Laboratory Manual Science, Class 11 – NCERT Publication (Demonstration 2) 
• NCERT Books for Class 11 Physics – Part 1

Websites

• https://ncert.nic.in/pdf/publication/sciencelaboratorymanuals/classXI/physics/kelm114.pdf (Demonstration 2, Page No: 5)
• https://ncert.nic.in/textbook/pdf/keph105.pdf (Chapter 5, Page No: 2)
• https://thekidshouldseethis.com/post/physics-marble-track-review-homemade-science-teacher-bruce-yeany
• https://www.wired.com/2014/07/a-rolling-object-accelerating-down-an-incline/
• https://www.leonschools.net/site/handlers/filedownload.ashx?moduleinstanceid=71825&dataid=114025&FileName=6.3%20AccelerationInclinedPlanes.pdf
• https://courses.lumenlearning.com/suny-osuniversityphysics/chapter/11-1-rolling-motion/
• https://en.wikipedia.org/wiki/Inclined_plane