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A car moves from X to Y with a uniform s...

A car moves from `X` to `Y` with a uniform speed `v_u` and returns to `Y` with a uniform speed `v_d`. The average speed for this round trip is :

A

`(V_(u) + V_(d))/(2)`

B

`(2V_(d) V_(u))/(V_(d) + V_(u))`

C

`sqrt(V_(u) V_(d))`

D

`(V_(d) V_(u))/(V_(d) + V_(n))`

Text Solution

Verified by Experts

The correct Answer is:
B
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