Question

A body goes from A to B with a velocity of 20 m/s and comes back from B to A with a velocity of 30 m/s. what is the average velocity of the body during the whole journey ?
please give the process​

Answer 1

Answer :-

Average velocity of the body during the whole journey is 0 m/s .

Explanation :-

We have :-

→ Velocity from A to B (v₁) = 20 m/s

→ Velocity from B to A (v₂) = 30 m/s

To find :-

→ Average velocity of the body .

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During it's whole journey, the body travels from 'A' to 'B' and then returns back from 'B' to 'A'. So, the body is returning to the same position from where it started .

So, displacement of the body is 0 m as initial and final points are same .

Also, let the total time taken in the journey be 't' seconds .

Average velocity :-

= Total displacement/Total time

= 0/t

= 0 m/s

Answer 2

☀︎︎ANSWER☀︎︎

GIVEN:-

Velocity when a body goes to A to B = 20m/s

Velocity when a body comes back from B to A = 30m/s.

TO FIND:-

The Average velocity of the body during the whole journey.

SOLUTION:-

Average velocity

= Total displacement/Total time

In this case, the body goes from A to B and returns back from B to A.

That is , the body returns to the original position.

Hence , the initial position and final position of the body are same.

Displacement = 0

Therefore , velocity = 0 .

♥︎THANKS!!