1. The problem statement, all variables and given/known data electron starting from rest and moving with constant acceleration travels 4.7cm in 8.2ms. What is the magnitude of this acceleration? Answer in km/s^2 2. Relevant equations X=Xi + (Vi)t + 1/2at^2 3. The attempt at a solution Vi = 0 so the equation becomes X = Xi + 1/2at^2 t = 8.2ms and X = 4.7 so 4.7 = Xi + 1/2a(8.2)^2 I feel like I did everything right up to this point but all I need is acceleration to plug in but I'm not sure how to get that.