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If a body travels half the distance with velocity v1 and the next half with velocity v2

If a body travels half the distance with velocity v1 and the next half with velocity v2, its average velocity will be given by

Options

(a) v=√(v1 x v2)
(b) v= (v1 + v2) / 2
(c) v= v1 / v2
(d) (2 / v)= (1 / v1) + (1 / v2)

Correct Answer:

(2 / v)= (1 / v1) + (1 / v2)

Explanation:

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