Originally Posted By: paul
the 1000kg pipe has a speed of 4m/s

in order to stop the pipe in 1 second you must apply a force
of 4000N for 1 second.

I agree.

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the 100kg mass only applies its force to the pipe for 0.5 seconds
before it reaches the half way point.

Yes. And it also applies a force to the pipe during the 2nd half of its travels out the other side.


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acceleration is (((( DISTANCE / ((((DISTANCE * TIME ))))

You love inventing dimensionally inconsistent equations to serve your pre-assumed result, don't you? That isn't acceleration.


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I think your problem is that you dont include time.
or when you do you dont take into consideration that
half of a second is a big difference when using a
time frame of 1 second.


How about trying to understand my calculation? - the one in bold I posted a couple of days ago is probably the most complete and up-to-date. Then you can actually identify what my problem is, rather than guessing.

I consistently do exactly that for you. See in this message I understood that you used a wrong formula for acceleration and pointed it out. You can try to defend it, but good luck finding any websites or books or experiments or people or anything that support the equation a = distance / (distance * time)