[LB7 (OP)]

here:


begv.png (53.84 kB . 879x585 - viewed 3584 times)

[LB7 (OP)]

The sum of energy:


pm.png (110.61 kB . 1048x732 - viewed 2649 times)

[LB7 (OP)]

I corrected the image:


gf9.png (123.38 kB . 1284x782 - viewed 2429 times)

And I drew another position:


fd9.png (63.38 kB . 821x767 - viewed 2509 times)

[LB7 (OP)]

Even there is no friction, in that case there is no movement from one red circle to another, so I can push one red circle from the other (or pull) to have the forces F1 and F2.

[alancalverd]

 Not sure what you are trying to prove, but any 3 wheels in mutual contact cannot rotate.

[LB7 (OP)]

I try to prove the energy is not conserved. The black wheel is fixed (it is the ground). I thought there was friction between the red wheels but not, because there is no movement from one to the other. So in that case, I don't need 4 circles. Just a bike (2 red circles) on a curved ground (black circle) with wheels of the bike big enough to have near the contact between them. Like there is no movement from one wheel from the other, I can push from one wheel the other wheel to have the force F1 and F2 and the sum of energy is -2RFwt.


gf8.png (63.39 kB . 1113x860 - viewed 2463 times)

[Bored chemist]

You have invented the non-working bicycle.
Why did you bother?

[LB7 (OP)]

In the previous image: there is friction between the red circles, so with friction between the orange circle and the red circle (A) I have less from friction than I lost from the torque around A0:


59.png (78.84 kB . 1038x768 - viewed 2441 times)

The red circles is the same body: the rear wheel.


hn.png (47.16 kB . 689x650 - viewed 2281 times)

[LB7 (OP)]

I corrected the image:


ри8.png (102.26 kB . 1106x789 - viewed 2247 times)

[LB7 (OP)]

With a basic bike (red circles) on a fixed curved surface (black circle), the friction between the wheels is two times the value I thought so the sum of energy is not conserved:


gf6.png (83.32 kB . 1162x770 - viewed 2243 times)

[Bored chemist]

Energy is conserved.
This is true no matter how many circles you draw.
What are you trying to achieve here?