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 distance traveled is d. Taking y1 = 0, enter an expression for the potential difference that the charge traverses in terms of the available symbols. v2 - v1 = ?

If the charge q = 8.4C, distance d=75m and the constant is A = 9.5V/m², how much work in joules in done on the charge while it traverses the potential difference in part b?