Question

Which of the following options is correct for the object having a straight-line motion represented by the following graph?

• A. The object moves with constantly increasing velocity from O to A and then it moves with constant velocity,
• B. Velocity of the object increases uniformly
• C. Average velocity is zero
• D. The graph shown is impossible

Answer 1

Answer: (C)

According to given displacement-time graph, in a certain time interval $\Delta t$, displacement of the object becomes zero.

Hence, average velocity of object
$=\frac{\text{ Total displacement }}{\text{ Time interval }}=\frac{0}{\Delta t}=0$