A person travels x distance with velocity v 1 and then x distance with velocity v 2 in the same direction. The average velocity of the person is v, then the relation between v, v 1 and v 2 will be
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The time (t 1 ) taken by the person to travel distance x with velocity v 1 is given by .
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The time (t 2 ) taken by the person to travel distance x with velocity v 2 is given by
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The formula to calculate the average speed (v) of the person is given by
…
Substitute the expressions from equations and into equation to obtain the required relation.
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