# Question #bcd7f

Jul 25, 2016

The graph indicates free fall of a body from a height under constant acceleration due to gravity hitting ground after elapse of some time.

#### Explanation:

The graph depicts how does a quantity $A$ changes with the change of another quantity $B$

1. The graph is quite similar to a parabola.
2. Quantity $B$ decreases with increase in $A$.
3. The decrease in $B$ is not constant. It changes with increase of $A$.
4. Initially the decrease is small. With increase of $A$ the decrease increases.
5. At a point when $B = 0$, value of $A$ is maximum.
6. At a point when $B$ is maximum, value of $A = 0$.

If we recall kinematic equations, we can easily identify the graph as drawn between height $h$ and time $t$ of a free falling body under gravity $g$, dropped from height $h$ with initial velocity equal to zero.
The equation is
$h = - \frac{1}{2} g {t}^{2}$
where height $h$ is the quantity $A$ and time $t$ plotted as quantity $B$

The graph indicates free fall of a body from a height under constant acceleration due to gravity hitting ground after elapse of some time.