Originally Posted By: paul
kallog the mass will not be slowed down in the turn.

Correct.

Quote:

if you believe that the mass will impart a -2 to the pipe using only a +1 , and the mass still has any movement at


Tell me which step(s) you disagree with:

1) -2 is a measure of the momentum added to the pipe. We can call it -2Ns

2) You can't get free momentum.

3) The system (mass and pipe together) started with zero momentum ...

4) ... so it must maintain zero momentum all the time.

5) After the 1st acceleration the mass has momentum of -1Ns and the pipe has +1Ns

6) After the 1st turn .. I better not finish this until the first steps are confirmed.