[SOLVED] Griffiths Problem 5.41 1. The problem statement, all variables and given/known data This question refers to Griffiths E and M book. http://www.phys.unsw.edu.au/~gary/PHYS2050_Tut_5.pdf [Broken] 2. Relevant equations 3. The attempt at a solution Am I supposed to assume that the initial velocity is perpendicular to the B-field i.e. in the plane of the page? I am trying to find the total change in angular momentum and the integral just seems evaluatable unless I do that.