a small sphere with a mass of 108.0 g is moving along the y-axis when it encounters an electric field of 5.0i N/C . If the sphere suddenly accelerates

13.0i(i is the unit vector) m/s^2, what is the charge that it carries?

a = F/m

F = q E
so
a = q E/m

13 = q (5)/0.108