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What is the average velocity of a man wh...

What is the average velocity of a man who travels the first-half time with a velocity `v_1` and the second-half time with a velocity `v_2` ?

A

`v_1 v_2`

B

`(v_1 + v_2)/2`

C

`(2v_1 v_2)/(v_1 + v_2)`

D

none

Text Solution

Verified by Experts

The correct Answer is:
B
Average velocity = `("Total distance")/("Total time")`
`= (v_1 xx t//2 + v_2 xx t//2)/(t) = (v_1 + v_2)/(2)`
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