we are discussing the events after 101 seconds.

this will include the 10,100 kg of the 101 100kg masses.

at the start the pipe and the 101 masses have a combined mass of 11,100 kg.

after the first second the pipes mass decreases to 11,000 kg
because 1 of the 100 kg masses is accelerated toward the turn

50 masses are launched before the 1st 100 kg mass enters the turn.

and as the 1st 100 kg mass enters the turn another 100 kg mass is being launched.

the force of 80N applied to the first mass will accelerate the 11,000 kg pipe to an acceleration of .007 m/s/s

at the end of the 1st second the pipe will have a velocity of
+.007 m/s

after each 100 kg mass is launched the total mass of the pipe and masses reduces by 100 kg.

at the end of 50 seconds the pipe has a mass of 6100 kg and it has a velocity of +12.84 m/s !!!

its momentum is 6100 kg x 12.84 m/s = 78,324 Ns

so there are more things to consider than just your inability to understand the difference between force and momentum.

however you should really try to understand that you would really have a hard time stopping or even considerably slowing down a object that has a +78,324Ns momentum
with an object that has a mere -4000Ns momentum.

and that is only after the first 50 seconds.

so before there is any (-) influences that would impede the motion of the pipe.

it already has 78,324 Ns momentum.

and it already has a force being applied to it of
+4000N

looks to me like I just knocked all the legs off of the table that you were using.

and your whole side of the discussion just dissapeared.


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