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A body covers one-third of its jurney wi...

A body covers one-third of its jurney with speed `v_(1)`, next one-third with speed ` v_(2)` and last one-third with speed `v_(3)`. Calcuate the average dpeed of the during the entire journey.

A

`(2v_1 v_2 v_3)/(v_1 v_2 + v_2 v_3 + v_1 v_3)`

B

`(3v_1 v_2 v_3)/(v_1 v_2 + v_2 v_3 + v_1 v_3)`

C

`(v_1 v_2 v_3)/(v_1 v_2 + v_2 v_3 + v_1 v_3)`

D

`((v_1 + v_2 + v_3))/(3)`

Text Solution

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The correct Answer is:
B
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