Proof that centripetal acceleration equals v²/r without calculus

[physicsnoob93]

Hey Guys

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.

 

[heafnerj]

This was published by Brownstein (AmJPhys 62(10), p. 946, October 1994). It was also in the PSSC materials.

 

[physicsnoob93]

Thanks.

Heh, i didn't know about the publications ><. Thanks, and sorry for not crediting before this.