a lot of people were asking me how to prove that centripetal acceleration is v squared over r.
Well, i know quite a few people here might not know calculus, not that the calculus to prove it is very hard, but i prepared something for you guys. Its a beautiful proof which i like much more than any calculus proof.
Its slightly amateurish because i've never really done this before.
Hope it helps though, i think you can find the proof on wikipedia anyways.
You can ask me if you guys need anything else.