The Electrons in a Particle Beam Each Have a Kinetic

The electrons in a particle beam each have a kinetic energy of 1.6 * 10^-16 J,enter an electric field of 2000 N/C and are stopped.What is the stopping distance of these electrons?

A) 3.2 m
B) 2.0 m
C) 0.25 m
D) 4.0 m
E) 0.50 m