Question

Question #bcd7f

Answer 1

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`
Following observations are made:

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=-1/2g 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.