1. The problem statement, all variables and given/known data An electron's position is given by R= 3t i + 4t^2 j + 2k, where t is in seconds and R is in meters. What are the (a) x-, (b) y- and (c) z-components of the electron's velocity? (d) What is the electron's speed? (e) What angle does the electron's velocity make with positive x-axis? Give all answers as appropriate functions of time. 2. Relevant equations 3. The attempt at a solution So far, I have the x-component = 3 y-component= 8t z-component= 0 I have no idea how to find the speed, of the angle it makes. For the speed I put 3 + 8t, and it was wrong. I have one more try at the problem.