Quote:

- An accelerated mass starts with momentum p1.
- After acceleration at force F for time t it ends up with momentum p1+F*t. The reaction has the opposite effect on the pipe,


if I drive a car from new york to california then I apply the brakes and stop the car , does it require as much force to stop the car as it did to get the car to californa from new york?

no it doesnt.

and if there are 19 people driving 19 cars behind me at the same time , and Im only stopping 1 car.

is the force required to stop my 1 car the exact force being used to push the other 19 cars to californa?

no , it isnt.
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3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.