Question

In the above question, if the boy covers half the path during his return journey, find the average speed and average velocity.​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

Let the total distance be 2x.

For first half distance :

Speed is 20 m/s

Thus time taken t

1

=

20

x

For second half distance :

Speed is 30 m/s

Thus time taken t

2

=

30

x

Average velocity V

avg

=

t

1

+t

2

2x

⟹ V

avg

=

20

x

+

30

x

2x

=

20+30

2×20×30

=24 m/s

Explanation:

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