john walks to school in the morning and then walks home for lunch. The school is 1000 meters directly north of his house. After lunch, he goes back to the school and then to the field for track that is 30 meters north of the school. What is John's resultant displacement when he remains on the field to run track?

stands for electromotive force and it is measured in volts. despite its name, it is not actually the force in the sense of being a "pushing" or "pulling" (not measured in newtons).an equation that relates emf,  ℰ,  to a battery's terminal voltage, v, current, i, and internal resistance, r, is    ℰ = v + irin this case, the emf can be interpreted as a voltage—a difference in electric potential.i would not say that it would be considered an energy. if emf can be defined as the energy/work per a unit charge from a battery or other electric source, then it is not strictly energy.

Good moring let me you on this question the answer the electric force  have a good day ; )

I'm pretty sure the answer is c