[minthaka]

Well, I've actually studied mathematics. Don't take this as offend, but I needed 30 seconds to solve this task. It has no such important meaning to name it with a special name. I gave this task to one of my pupils of 14 years, I'm curious to see what can she do with it.

[usamamuneeb]

Of course, this isn't an offend. After all, the name I gave to it was meant to be a joke. It not only sounds ridiculous but is ridiculous.

OK, let's see what one can do with this problem. After all, I am 13 so there's no point in laughing at me if I could do a simple problem.

[minthaka]

Well, then accept my congratulations! It's a really nice thing that you've managed to solve that problem with your 13 years.

[usamamuneeb]

Thanks, nice thing you acknowledged.

[questio verum]

Originally Posted by usamamuneeb

The image in the attachment shows a ball X roling over 8 central balls without slipping, from position a to position b (a and b are not to be considered as balls). How many complete revolutions will the ball X make, until it reaches position b?

Oooh... a puzzle. Me like puzzles...

Well, in the strictest sense, this question is unanswerable because you left one set of variables undefined: What are the friction/cohesion properties of the balls?

OK, useless point. So then, assuming that there is no slip and the balls don't merge one into another as the ball moves from A to B, the correct answer would be ONE. Without slip, ball X rotates 600 degrees in it's travel from beginning to end, and from 600 degrees, only ONE rotation is completed. The second rotation is only 66.666... % complete. Your original question was: How many complete revolutions will the ball X make, until it reaches position b?

Oh... Somebody slap me!


<--- (banana of self-indulgent jubilation) he! he! he!


qv

[questio verum]

Actually, Usamamuneeb... I liked this one a lot. I kid around, but I actually consider it a privilege to see someones' thought revealed in such a fashion. I hope you will grace us with more of the same in the future.

'Big ups', bro!

qv