"THE_ONE" wrote in message
oups.com...
YBM wrote:
Sorcerer a écrit :
Acceleration without a force:
http://tinyurl.com/jb9rx

A apparent movement on a screen is not a physical movement, you
are just using Wilson's logic again.

So you can rotate a bunch of pixels on a screen without a force,
but what about a real object rotating without force ?

And the acceleration in the Train experiment, refers to Angular
acceleration , and Centripetal acceleration, which have nothing to do
with the Velocity of the object that follows the circular path itself.

The objects consistant Velocity( v ) is measured by 2*PI*R / T
where T = Time Period, and R = raduis.

Don't waste your time on Your Basic Moron, he is ineducable.
This ball is not accelerated by the carousel either.
http://ww2010.atmos.uiuc.edu/(Gh)/gu...s/coriolis.mpg
or
http://ww2010.atmos.uiuc.edu/(Gh)/gu...s/coriolis.mov

Your copyright is a waste of time, too. Nobody is about to steal
your stuff. :-)
http://www.androcles01.pwp.blueyonder.co.uk/gotcha.gif

Androcles

THE_ONE wrote:

And the acceleration in the Train experiment, refers to Angular
acceleration , and Centripetal acceleration, which have nothing to do
with the Velocity of the object that follows the circular path itself.

? :-)

The objects consistant Velocity( v ) is measured by 2*PI*R / T
where T = Time Period, and R = raduis.

The centripetal acceleration is a = v^2/R
The centripetal force which make the train go in circle
is m*v^2/R where m is the mass of the train.
It is of course the track that is exerting this force on the train.

Look up Newtons laws of motion.

Paul

"Paul B. Andersen" wrote in message
...
| THE_ONE wrote:
|
| And the acceleration in the Train experiment, refers to Angular
| acceleration , and Centripetal acceleration, which have nothing to do
| with the Velocity of the object that follows the circular path itself.
|
| ? :-)
|
| The objects consistant Velocity( v ) is measured by 2*PI*R / T
| where T = Time Period, and R = raduis.
|
| The centripetal acceleration is a = v^2/R
| The centripetal force which make the train go in circle
| is m*v^2/R where m is the mass of the train.
| It is of course the track that is exerting this force on the train.
|
| Look up Newtons laws of motion.
|
| Paul


AXIOMS, OR LAWS OF MOTION.

--------------------------------------------------------------------------------

LAW I.
Every body perseveres in its state of rest, or of uniform motion in a right
line, unless it is compelled to change that state by forces impressed
thereon.

LAW II.
The alteration of motion is ever proportional to the motive force impressed;
and is made in the direction of the right line in which that force is
impressed.

LAW III.
To every action there is always opposed an equal reaction; or the mutual
actions of two bodies upon each other are always equal, and directed to
contrary parts.

Sorcerer wrote:
"shevek" wrote in message
oups.com...
| Force is most certainly required to maintain uniform circular motion.
| Constant acceleration implies constant force.

This bottle is in uniform circular motion relative to Mickey:

http://www.androcles01.pwp.blueyonde...ickeyLarge.gif

Where is the force acting on it? Or do you claim a universal frame?




A better example of what you are trying to point out (I think) is the
Coriolis force. Why does a projectile thrown directly up, with no
wind, not land in exactly the same place?

Answer: the reference frame which takes the surface of the earth at
rest is not inertial, and so it will appear as though forces are acting
on anything in that reference frame.


Otherwise, you are asking me to explain the physics of a cartoon, which
doesn't have to obey the laws of physics.

What is a universal frame? I don't understand.

"shevek" wrote in message
ups.com...
|
| Sorcerer wrote:
| "shevek" wrote in message
| oups.com...
| | Force is most certainly required to maintain uniform circular motion.
| | Constant acceleration implies constant force.
|
| This bottle is in uniform circular motion relative to Mickey:
|
|
http://www.androcles01.pwp.blueyonde...ickeyLarge.gif
|
| Where is the force acting on it? Or do you claim a universal frame?
|
|
|
|
| A better example of what you are trying to point out (I think) is the
| Coriolis force.

The coriolis effect is not a force, it is merely an observation from
a frame of reference.

http://ww2010.atmos.uiuc.edu/(Gh)/gu...s/coriolis.mpg
http://ww2010.atmos.uiuc.edu/(Gh)/gu...s/coriolis.mov

A better example of what you are trying to point out (you think)
is teaching grandpa how to suck eggs.


Why does a projectile thrown directly up, with no
| wind, not land in exactly the same place?
|
| Answer: the reference frame which takes the surface of the earth at
| rest is not inertial, and so it will appear as though forces are acting
| on anything in that reference frame.


There still no force involved.

| Otherwise, you are asking me to explain the physics of a cartoon, which
| doesn't have to obey the laws of physics.
|
| What is a universal frame? I don't understand.

That's right, you do not understand.
THE universal frame is the one in which the speed of light is constant
and travels in straight lines. Einstein called the stationary frame.

"Force is most certainly required to maintain uniform circular
motion." -shevek.


Hence the Sun crosses the sky daily driven by the coriolis force and
goes in a circle all around the flat Earth like Mickey's bottle travels from
his left hand to his right and back again, doesn't it?

One of us has had too much of the contents of the bottle.

Androcles.

"shevek" wrote in message ups.com...

Sorcerer wrote:
"shevek" wrote in message
oups.com...
| Force is most certainly required to maintain uniform circular motion.
| Constant acceleration implies constant force.

This bottle is in uniform circular motion relative to Mickey:

http://www.androcles01.pwp.blueyonde...ickeyLarge.gif

Where is the force acting on it? Or do you claim a universal frame?




A better example of what you are trying to point out (I think) is the
Coriolis force.

He is trying to point out that he knows something about
physics, and -as always- he completely ****s up :-)


Why does a projectile thrown directly up, with no
wind, not land in exactly the same place?

Answer: the reference frame which takes the surface of the earth at
rest is not inertial, and so it will appear as though forces are acting
on anything in that reference frame.

Not only will it *appear*. A train riding on a straight track will
experience a real sideways force from the tracks. On tracks
where trains ride in one direction only, the tracks wear out
differently. Even an airplane will feel different drags on both sides..



Otherwise, you are asking me to explain the physics of a cartoon, which
doesn't have to obey the laws of physics.

What is a universal frame? I don't understand

Neither does he.
The man is insane - and a drunk.

Dirk Vdm

THE_ONE wrote:
YBM wrote:
Sorcerer a écrit :
Acceleration without a force:
http://tinyurl.com/jb9rx

A apparent movement on a screen is not a physical movement, you
are just using Wilson's logic again.


So you can rotate a bunch of pixels on a screen without a force,
but what about a real object rotating without force ?


Would the Earth do as an example?
What is the Force that is constantly being applied to the Earth to
maintain its constant acceleration ?

Gravity.


If the Earth was rotating even faster, what is the new Force that is
constantly being applied to the Earth to maintain its new constant
acceleration ?

Gravity.


In the Train experiment, acceleration refers to Angular acceleration ,
and Centripetal acceleration, which have nothing to do with the
Velocity of the object that follows the circular path itself.

The objects consistant Velocity( v ) is measured by 2*PI*R / T ,
where T = Time Period, and R = raduis.