...to dead point? The main concern here is why is it per unit mass. I know the question is a bit unclear but that's what my Physics teacher asked me today. Any idea? Thx in advance
It is useful to have a quantity that describes the potential energy per unit mass in the same way that it is useful to have a quantity that describes potential energy per unit charge in an EM problem. The quantity describes the system as a whole and is independent of the mass you put in it to feel the potential.
It is useful to have a quantity that describes the potential energy per unit mass in the same way that it is useful to have a quantity that describes potential energy per unit charge in an EM problem. The quantity describes the system as a whole and is independent of the mass you put in it to feel the potential.