Question

The displacement - time graph of a particle moving in a straight line is shown in the figure. Then

• A. Velocity at point $D$ is greater than that at point $B$
• B. Speed of the particle is increasing continuously
• C. Acceleration is uniform
• D. The particle is first uniformly accelerated and then retarded

Answer 1

The correct option is A Velocity at point $D$ is greater than that at point $B$

The slope of the displacement - time graph at a point gives us the velocity at that point. From the graph, it is clear that the slope at point $D$ is greater than that at point $B$. Hence the velocity at point $D$ is greater than that at point $B$. So, option (A) is correct.