A particle of charge q > 0 moves in a uniform electric field E under no external force for a total distance d starting from rest. Suppose the field is varying according to E = (2/11)Ayj, where y is the vertical coordinate. The charge q travels from point y1 to point y2, where the total traveled distance is d. Taking y1 = 0, enter an expression for the potential difference that the charge traverses in terms of the available symbols.