Question

The displacement - time graphs of two bodies $A$ and $B$ are shown in figure. Which of the following statements is correct?

• A. $A$ is moving faster than $B$
• B. $B$ is moving faster than $A$
• C. $B$ is always $20m$ behind $A$
• D. $A$ is always $20m$ behind $B$

Answer 1

The correct option is D $A$ is always $20m$ behind $B$

As clear from the distance - time graph, $B$ has already covered $20m$ distance while $A$ was at origin. So, $A$ will always be behind $B$ by $20m$ as both $A$ and $B$ are moving with constant velocity.