Centripetal accelereation is nonsense

is there anyone out there who is clever possibly with a good qualification and doesnt agree with a=v^2/r please say hail and get in contact with me asap thanx

it sometimes does not make sence

It sometimes wants to make me quote "I don't think I drink" lol

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My physics qual. is a humble BSc, but for what it's worth, here's my opinion. Centripetal, not centrifugal acceleration is real. Why? Well, Newton's first law correctly says that a body moves in a straight line unless acted on by a force. If you're being whirled round on the end of a rope, you'd just shoot off in a straight line if the tension in the rope wasn't continuously forcing you to change direction. This is a centripetal force. Centrifugal force is imaginary, just as Coriolis force is imaginary. In this latter case, air moving from the Equator towards the pole just wants to keep moving at its initial speed as Newton stated. But as it crosses territory closer and closer to the polar axis, which is moving slower and slower, it appears to us, who are rotating with the Earth, to be forced sideways. Mind you, as long as you keep all this at the back of your mind, it's nitpicking. Centrifugal and Coriolis forces are useful fictions.

As long as v is an insignificant fraction of the speed of light, the formula is completely valid. I really don't know why you insist upon refusing the truth.

Here is the formal proof:
http://www.khanacademy.org/video/calculu…

Here is a visual proof for those who don't yet know calculus:
http://www.khanacademy.org/video/visual-…