Re: question for Ricky

Prichard...

Guess what, YOU'RE WRONG again!

"R" <rgere70_4@xxxxxxx> wrote in message
news:1139959022.945944.76550@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
For every force ther is an equal and opposite force in the opposite
dirction,

NOPE. No such LAW. Not even close. Not even REMOTELY close.

Did you perhaps mean that for each ACTION there is an equal and opposite
REACTION???? BIG, BIG, BIG difference. HUGE DIFFERENCE. In other words,
you're HUGELY WRONG! If you were right... NOTHING would ever accelerate!

Like I already said... talking about "centrifugal force" in this context is
a sophomoric mistake. Common... but sophomoric. And here is the simple and
4 line proof that we use to break engineering FRESHMAN of the practice.
It's simple.. see if you can follow:

1) Centripetal acceleration is the acceleration that constrains an object
to a circular path. That's a FACT.... look it up.... Google your brains
out. And if that object has any mass, then the centripetal FORCE is that
acceleration times the mass.

2) As Prichard INCORRECTLY claims, the "centrifugal force" is the "equal
and opposite" force acting on the object. (That's WRONG... but let's go
forward).

3) Sum the FORCES acting on the body (or draw the "free body diagram" if
you know how). That would be the centripetal force PLUS the "centrifugal
force". Equal and opposite. Therefore the net sum is ZERO. There is NO
FORCE acting on the body.

4) A body with NO FORCE acting upon it will not have an acceleration. That
means there is no change in its velocity (magnitude OR direction). And that
means that the object is either moving in a straight line at a constant
speed... or it isn't moving at all. Guess what???? NO CIRCLE!

QED: Prichard is WRONG again!

No big surprise there.

But then again, he didn't even know or understand the BASICS or Newtonian
physics!

Giz




.

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