Answer: 30 fN ( 30* 10^-15 N) and it is pointed to to -y-axis.
Explanation: In order tosolve this question we have to usethe Coulomb force given by:
F=e*E= 1.6 *10^-19 C* 1920 N/C= 30 fN the force pints in opossite direction of the electric field due to the sign of charge of the electron.