This was just supposed to be a side exploration, @paulimerci is aware of that. However, I probably should have started a new thread.Lnewqban said:Sorry @haruspex , I can’t understand your example.
Probably irrelevantly and wrongly, I have just tried to extend post #23 from @jbriggs444 by excluding the action of the unidirectional influence of g, as the problem in discussion gives the constrain of a rotating acceleration vector.
In my humble opinion, problems that may present vectors that change, rotate or move erratically without a natural reason are not helpful to students.
I hope that @paulimerci understands what the correct answer is and the natural or physical reason behind it.
Don't you think there is also an importance to understanding kinematics in physics? It's the mathematical framework in which we evaluate the physical laws. If you don't understand it well, you could end up doing what I did! What I don't understand is still a mystery to me, but it's clear I don't understand something. I could just as easily fumble "that something" applying the physical laws IMO.
Anyhow, just a thought experiment. I didn't mean to cause strife.