Okey, I got that but what do I calculate with this: v = (sqrt(gr)) ? And there comes my other question to your formula: a = v^2/r, well I have to calculate a for my v because that's not given, so that doesn't really help, does it?
I equated Fz and Fg but for which purpose, do you know that?
Yes that's what I thought too (In that case as long as his centripetal acceleration at the top of the arc is greater than or equal to g, the passenger won't fall out of their seat.) because Fz has to be greater or the same as Fg but to calculate the needed velocity for DOING this loop (and here...
In this case it is not a pendulum, I can't really find an example... Like it's a military pilot and he's joking around and doing fun stuff then he's looping the loop (is that the correct phrase?) so it doesn't really have to do anything with the velocity given at the instant turnaround
So currently I'm stuck in a topic which I don't understand because either my teacher is doing wrong or I'm just blind to see my mistake
I want to know the velocity of a object at the highest point in a swing (looping is the German word, I'm not sure if it's the same in English) (I don't know...