Draw a plot showing the variation of potential energy of a pair of nucleons as a function of their separation (r). Using this plot, show that the…

Draw a plot showing the variation of potential energy of a pair of nucleons as a function of their separation (r). Using this plot, show that the nuclear force is (i) attractive for $\displaystyle \mathrm{r}>\mathrm{r}_{0}$, and (ii) repulsive for $\displaystyle \mathrm{r}<\mathrm{r}_{0}$.