Hey I need help with the attachment below that have two questions that I don’t know how to answer please help and if you answer this please make sure they are simple answers and I need this before 8:30

Which of the following is an example of motion in two dimensions?

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.

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.