Reactive Current - Parallel RCL

[lancaIV]

You might as well say no work is done anywhere, anywhen.


which rating frame ? Theosophical,theological,economical,scientological,teleological ?


By Buddhism : 100% correct   


But : I am not Buddhist !   Listen I do ..... https://www.youtube.com/watch?v=Hexzt2Wo-Sw

[nix85]

If you move the book at constant speed horizontally,you don't do any work on it, despite the fact that you have to exert an upward force to counter-act gravity.

You can even make a frame out of your favorite candy

It will still not make that statement true.

[lancaIV]

calculus : Euklid,Galilei,Newton,Euler,Kartesian


https://translate.google.com/translate?sl=auto&tl=en&u=https://www.leifiphysik.de/mechanik/kraft-und-bewegungsaenderung/grundwissen/3-newtonsches-gesetz-wechselwirkungsprinzip


F with ever -F (often forgotten,not counted)


only (quasi) frictionless or also F and -F  influencing,this here :


                        http://www.rexresearch.com/wilkes/1wilkes.htm




https://demoweb.physics.ucla.edu/content/20-paradox-forces    Paradox,not absurd

[nix85]

"you don't do any work on it (the book)".

No matter how much unrelated stuff you now paste about + and - force, frictionless bearing or whatever it changes not the fact that work IS done on the book in your little example. 

[lancaIV]

"you don't do any work on it (the book)".

No matter how much unrelated stuff you now paste about + and - force, frictionless bearing or whatever it changes not the fact that work IS done on the book in your little example. 

Reply #15 ,member nix85 :


"If you move the book at constant speed horizontally,you don't do any work on it, despite the fact that you have to exert an upward force to counter-act gravity.


" to move the book at constant speed you must first accelerate it and then work against friction,
thus you are doing work,
that you have not lifted or lowered it vertically is irrelevant