1. The problem statement, all variables and given/known data A particle with a mass of 1.5×10−5kg and a charge of +2.9 μC is released in a (parallel plate) uniform horizontal electric field of 11 N/C . How far horizontally does the particle travel in 0.40 s ? 2. Relevant equations I think some of the kinematic equations are needed, but it's been so long since I took that part of physics, I'm not sure which one to use! 3. The attempt at a solution I don't even know where to start. I think I have to find the particle's acceleration first, but I'm not even sure how to do that!