Do 45 RPM records need higher anti-skate setting?

Oh yes, it was you to whom I was responding, Omsed. It was you who used the term "centrifugal". So what's your point? I did find my response, and I don't see where I ever said anything that could be construed as attributing skating to a centripetal force. Indeed, as noted above, I was just discussing the physics of a body in orbit.

Misunderstanding: it was the blog about anti-skate that an above poster referenced which mentioned centripetal force, which makes the science credentials of the blogger suspect.

Omsed,
You need to read and assimilate before spouting. Otherwise you may be
considered a wanker.
[quote] This greater acceleration does not exist. And more energy is NOT
being put into the system or the volume would be louder on a 45![/quote]

So would you care to enlighten us otherwise why anyone would use 45 rather
than 33 1/3 other than to be able to have a disc with higher modulation?
As far as my (possibly inferior) knowledge is aware, that a body revolving
faster has more energy than one revolving slower. I thought this was
something to do with kinetic energy?
Therefore permitting higher signal levels to the cartridge.
Of course you may not have noticed any difference between 45s and 33s, in
which case get yourself some and listen....

Re centipetal force - think about it. The only revolving item other than the
platter, is the tonearm, which is the item under discussion, and there are
minimal, and irrelevant, centripetal forces acting on it, which is what I have
said in the blog.
John

Omsed, Point taken. Sorry.

John, The tonearm is stationary, resisting the force of friction on the stylus tip which would tend to want to pull the tonearm clockwise in the direction of LP rotation. But I have privately wondered about a tiny centripetal force exerted by the LP on the stylus tip, as the grooves spiral inward. I think it's overcome or negated by the skating force.

Lewm,
If there was no groove, the arm would skate and rotate until there were no forces acting to make it do so, so there would be, for a short while, a "conventional" centripetal force acting on the stylus and arm along the stylus to pivot axis caused by the rotation.

When there is a groove, the inside face restrains the stylus, so there is effectively no such force, because the arm is rotating only minimally (at less than 0.01 rpm), and the stylus has such a tiny mass, that any forces are negligible, and totally overwhelmed by the friction forces by many orders of magnitude.
J