Question

a girl sits and stands repeatedly 5minutes draw a graph to show variation of potential energy of her body with time

Answer 1

Potential energy is the energy that exists by virtue of the relative positions of the objects within a physical system. If the girl is moving vertically as in a lft there will be a change in potential energy. But if the girl is standing there will be no change in the potential energy of the body of the girl. Henceforth I've explained that girl sits and stands repeatedly 5minutes draw a graph to show variation of potential energy of her body with time.