Suggest a suitable physical situation for each of the following graphs:

Explanation

(a) The graph shows that initially a body was at rest. Then suddenly acquires constant velocity in positive direction. After some time it rebounds and move in negative direction and finally comes to rest.
A similar situation occurs when a ball (at rest) is kicked, which rebounds on striking a wall with a reduced speed, then moves to the opposite wall and gets stopped ultimately.
(b) The similar situation occurs when a ball is thrown up with some initial velocity on striking the floor, it rebounds with reduced speed after each collision with floor.
(c ) In this graph velocity of a body is initially constant Then acceleration increases for a short duration, then falls to zero and after that the body again moves with a constant velocity. The similar situation occurs when a cricket ball is hit by a bat for a very short duration of time.