Recent content by Xenonnn

I see it now. Thank you very much help!

Thank you very much, using this I could find both \theta ' and \theta ''. I now think I understand this problem: 1) Find the radius correlation using the law of cosines. 2) Find the angle correlation using the fact that the triangle is isosceles. But I still can't nail the first part...

Starting out with the laws of cosines I think seems very good, if I could make it work. This is what I tried (I have looked over it a couple of times for errors, but I can't find anything apparent.): r = \sqrt{2*0.15^{2}-0.15^{2}*cos(\beta)} r' = \frac{0.15^{2}*sin(\beta)*\beta...

Homework Statement The problem and answers are given in full through the following image: http://ekdhl.net/files/mechanics.JPGHomework Equations Equations 2/13 and 2/14 are these: \textbf{v} = r'e_{r} + r\theta 'e_{\theta} \textbf{a} = (r''-r\theta '^{2})e_{r} + (\theta ''r + 2r'\theta...