Question

a boy goes from A to B with a velocity of 20 metre per second to come back b to A velocity 30 metre per second the average velocity of boy during whole JOURNEY ​

Answer 1

Answer:

Average velocity =

Average velocity = Total time

Average velocity = Total timeTotal displacement

Average velocity = Total timeTotal displacement

Average velocity = Total timeTotal displacement

Average velocity = Total timeTotal displacement Since, in this case, the particle initial and final points are the same, therefore its Displacement =0.

Average velocity = Total timeTotal displacement Since, in this case, the particle initial and final points are the same, therefore its Displacement =0.∴Average velocity=0

Answer 2

Answer:

Average velocity = Total time

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Total displacement

Since, in this case, the particle initial and final points are the same, therefore its Displacement =0.

∴Average velocity=0