A person travels along a straight road for the first half time with a velocity v1 and the next half time with a velocity v2 The mean velocity v cng of the man is

Question:

Options :

(a) 2/v = 1/v1 + 1/v2
(b) v = (v1 + v2})/2
(c)v=√v1v2
(d)v=√v1/v2

Answer :

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

Answer Steps :

Step 1:

Step 2:

Step 3:

Step 4:

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