Question
A body falls freely from height ‘h’. Plot the graph of kinetic energy and potential energy of body versus height from the ground.
Solution
When a body is falling from a height h, the kinetic energy of the body increases.
Gain in K.E is at the expense of gravitational P.E. So, the P.E of the body decreases as it falls from a height h.
But, the total mechanical energy remains conserved.
Therefore, the graph of K.E and P.E of the body vs. height from the ground is given by, 
