Question

1. Pith balls are small, lightweight objects that can pick up an electric charge. Suppose an experiment is performed and results show that Ball 1 attracts Ball 2. A third ball, Ball 3, is negative and repels Ball 2. What can be concluded about Ball 1 in terms of a charge sign and its value? Assign any charge to Ball 2 and Ball 3 as well as assign distances between all the charges. Assume that they lie on one the same straight line. Perform calculations using symbols (letters) only, not numbers. Base the calculations on a supportive drawing which have to be included to your answer. If inconclusive based on the available observations, what additional observations would be necessary in order to draw a conclusion?

**Specifically looking for the equation with symbols/ letters. I understand that Ball 1 is positive, but I am not sure how to draw the sketch and write an equation proving it.**

Answer 1