1. The problem statement, all variables and given/known data z+ up with E field, y to the right, x out of the page with B field particle released from rest at (0,0,0) with only initial y velocity y=(E/B)t or initial y=(E/2B)t 2. Relevant equations can you suggest a good differential equations text? y(t)=C1cos(wt)+C2sinwt+(E/B)t+C3 z(t)=C2cos(wt)-C1sin(wt)+C4 3. The attempt at a solution so particle will move in a linear straight line to the right? in the case of particle released from rest it will move in perfect half circle paths to the right? so there is a preservation of the geometry?