Suggest a suitable physical situation for the following $x-t$ graph.

(N/A) The given $x-t$ graph indicates the following motion:
$1$. Initially,the body is at rest at a negative position.
$2$. The body then moves with a constant positive velocity,reaching a maximum positive displacement at point $A$.
$3$. At point $A$,the body reverses its direction and moves with a constant negative velocity,passing through the origin.
$4$. Finally,the body comes to rest at a negative position.
$A$ suitable physical situation for this graph is a ball thrown vertically upwards from a point below the ground level (e.g.,from a pit),which hits a ceiling at point $A$,rebounds,passes the starting level,and eventually comes to rest on the ground.