Aforce in the negative x-direction is applied for 27 ms to a 0.4 kg mass initially moving at +14 m/s in the x-direction. the force varies in magnitude and delivers an impulse with a magnitude of 32.4 n-s. what is the mass's velocity in the x-direction? give the vector component in m/s.

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.