Susan goes out to exercise. she runs for one hour at a constant speed and velocity. what is the overall net force acting on susan? a) the net force acting on the runner must be zero. eliminate b) the net force depends on the pull of gravity on the runner. c) the net force acting on the object is pushing in the same direction the object is traveling. d) the net force acting on the object is pushing in the opposite direction the object is traveling.

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.