The system is initially moving with the cable taut, the 19-kg block moving down the rough incline with a speed of 0.180 m/s, and the spring stretched 68 mm. By the method of this article, (a) determine the velocity v of the block after it has traveled 184 mm, and (b) calculate the distance d traveled by the block before it comes to rest.

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.

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