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

`sqrt(v_(u)v_(d))`

B

`(v_(u)v_(d))/(v_(u)+v_(d))`

C

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

D

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

Text Solution

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The correct Answer is:

B, D

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