That is a really nice lesson. Using it for my notes. When you got down to the pulling the box example I started to freeze up a bit. Vectors and polar coordinates in the same problem! I began to shiver and shake, I was back in school... I used Geogebra to finish the calculation.
Despite my anxiety, I like the page alot, thanks.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
The best part of this page : The calculations and parameters are in an understandable manner.
I hope Momentum, Impulse, Moment of inertia etc. are also added on the page.
It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.