Question

1. The following figure shows the
distance-time graph for two
students A and B who start from
their school and reach their
respective homes. Examine it
carefully and answer the following
questions:
(a) Who starts first from the
school?
(b) Who reaches home first?
(c) Who covers more distance?
(d) Whose average speed is more?​

Answer 1

Explanation:

Given The following figure shows the

distance-time graph for two

students A and B who start from

their school and reach their  

respective homes. Examine it

carefully and answer the following

questions:

(a) Who starts first from the

school?  

(b) Who reaches home first?

(c) Who covers more distance?

(d) Whose average speed is more?

  According to graph we get

a. B starts from school first

b. A reaches home first

c. A covers more distance.

d. A has more average speed than B.

Answer 2

Given that,

The  distance-time graph for two  students A and B who start from  their school and reach their  respective homes.

(a). We need to calculate who starts first from the  school

According to figure,

Student A start first from the school.

(b). We need to calculate who reaches home first  

According to figure,

Student A reaches home first

(c). We need to calculate who covers more distance.

According to figure,

Student A covers more distance.

(d). We need to calculate whose average speed is more

Using formula of  average speed

$v_{avg}=\dfrac{D}{T}$

Where, D = total distance

T = total time

Total distance of A is more than B.

So, The average speed of A is more than B.

Hence, (a). Student A start first from the school.

(b). Student A reaches home first.

(c). Student A covers more distance.

(d). The average speed of A is more than B.