Quote:
What about the masses in the 1st turn? They apply a force pushing the pipe backwards.

there is only 1 mass in the turn each second.

it applies a force of -4000N
but that force is opposed by a force of +8000N

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transfer double it's initial momentum


I dont think thats possible kallog.

take into consideration the two carts applet for an example.

https://www.msu.edu/~brechtjo/physics/airTrack/airTrack.html

using two 1 kg masses

and accelerating them both at 40 m/s toward each other.

the result shows that neither mass has recieved double the momentum of the other mass.

because both 1 kg masses move away from each other at 40 m/s

if what you say were possible then each mass would transfer double its momentum into the other mass and they would both be moving away from each other at 80 m/s vs 40 m/s after they collide.

now if you look at the details of it you find that there is a required force of a (-) and (+) 40N to first stop
the two carts.
because they must stop in order to change directions.

so in the 2 carts example above they both did.
Quote:
transfer double it's initial momentum


the collision generated 160N
80N was used up in stopping the two carts.
80N was used up accelerating the two carts to -40m/s
and +40m/s

back to the pipe and mass system...

using only the (+) and (-) directed forces would show that
there is more force being applied to the pipe in the (+)
direction than in the (-) direction at any given time after the first 101 seconds.

its like a tug of WAR and the positive forces win.



3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.