A 1400-kg car is moving at a speed of 35 m/s. How much kinetic energy does the car have (in Joules)? I NEED HELP PLEASE :))

Along the line connecting the two charges, at what distance from the charge q1 is the total electric field from the two charges zero? express your answer in terms of some or all of the variables s, q1, q2 and k =14ï€ïµ0. if your answer is difficult to enter, consider simplifying it, as it can be made relatively simple with some work.