Question

25. The position-time graph of two students A and B returning from their school to the homes P and Q respectively
is shown in given figure. Answer the following.

Position →

A

B

(i) Who lives closer to the school?

→Time

(ii) Who starts from the school earlier?

(iii) Who walks faster?

(iv) Who takes more time to reach home?

(v) Will A and B meet each other while going to home?

[1]

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Answer 1

Answer:

sorry I didn't no this answer sorry

Answer 2

Given:

$\text { (1) As } O P<O Q, A \text { lives closer to the school than } B \text {. }$

$\text { (2) For } x=0, t=0 \text { for } A \text {; while } t \text { has some finite value for } B \text {. Therefore, } A \text { starts }$

$\text { from the school earlier than } B \text {. }$

$\text { (3) Since the velocity is equal to slope of } x \text {-t graph in case of uniform motion }$

$\text { and slope of } x-t \text { graph for } B \text { is greater that that for } A=\text {, hence } B \text { walks faster }$

$\text { than } A \text {. }$

$\text { (4) It is clear from the given graph that both } A \text { and } B \text { reach their respective }$

$\text { homes at the same time. }$

$\text { (5) } B \text { moves later than } A \text { and his/her speed is greater than that of } A \text {. From the }$

$\text { graph, it is clear that } B \text { overtakes } A \text { only once on the road. }$