[LB7 (OP)]

hey, I can use friction between disks:


rf6.png (56.15 kB . 1167x425 - viewed 2151 times)

[LB7 (OP)]

Maybe like that, a force from the left wall cost/gives nothing:


sz3.png (53.67 kB . 1176x451 - viewed 2217 times)


rf9.png (47.84 kB . 1160x456 - viewed 2184 times)

Like always: no mass, no friction, all volumes constant, the blue color is small spheres like molecules of water but without mass and friction, each blue sphere is attract by a spring, all springs are attached on the green line, the orientation of the springs are all the same at a time, the orientation of the springs is the same than the left wall (or the right), the force of the spring is constant: don't depend of the length of the spring, the red line shows the orientation of the springs.



rd6.png (47.74 kB . 1162x444 - viewed 2162 times)

[LB7 (OP)]

With the calculations


gst96.png (103.22 kB . 1169x768 - viewed 2092 times)

Or like that it is more easier:


fth2.png (49.28 kB . 1112x468 - viewed 1975 times)