2. Find the total potential energy function, lily) by adding ugly) & Usply). plot uly ) on another set of axes. Do this by hand ( no calculator / Desmos. ) Show work. .. Hint complete the square 3. uly) is parabolic. Determine the coordinates. of the vertex & label it on the parabola. (Express the coordinates in terms of m , K, g, & constant (s ) ) . Do you recognize the y- coordinate of the vertex ? This is a special vertical position - what is it ? 4. Label the regions on the plot. where the net force is adirected up. & where the net force is directed down