1. Acceleration: http://ffden-2.phys.uaf.edu/211_fall2002.web.dir/shawna_sastamoinen/Centripetal_files/image003.jpg
2. Speed: https://www.youtube.com/watch?v=ewk_zFO8Pto
3. Distance: https://www.youtube.com/watch?v=V8hJhTE3bUk
4. Displacement: https://www.youtube.com/watch?v=V8hJhTE3bUk
5. Velocity: http://formulas.tutorvista.com/physics/velocity-formula.html
6. Density: https://www.youtube.com/watch?v=kE8I_M2pyg8
2. Speed: https://www.youtube.com/watch?v=ewk_zFO8Pto
3. Distance: https://www.youtube.com/watch?v=V8hJhTE3bUk
4. Displacement: https://www.youtube.com/watch?v=V8hJhTE3bUk
5. Velocity: http://formulas.tutorvista.com/physics/velocity-formula.html
6. Density: https://www.youtube.com/watch?v=kE8I_M2pyg8