a boy goes from A to B with a velocity of 20m and comes back from B toA with a velocity of 30m the average velocity of the boy during the whole journey is
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If 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? Let the distance between A and B be 60 m. Time taken to travel from A to B = 60m/20m/s = 3 sec.
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