wothemids and rolling stones

Will sha!
For some reason or other I always think, that if someone just pushes something long enough it will roll.

Of course for Sisyphos that means the rolling will be downhill but still there might be other kinds of rolling – like for Buzz Lighyear from the Toy Story whose falling is almost flying.

So is it correct? Pushing long enough results in gaining momentum?

Do you have a similar experience, especially with Láadan?