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A boat can be rowed in still water at a ...

A boat can be rowed in still water at a speed u. The boat is moving downstream in a river in which water flows at a speed v. There is raft floating in water and therefore moving along with water at speed v. Let the boat overtakes the raft at the moment t = 0.
If the raft has covered a distance x during the interval in which boat overtakes the raft, turns back and crosses it again the speed of stream is

A

`(x)/(t_(0))`

B

`(2x)/(t_(0))`

C

`(x)/(2t_(0))`

D

`(x)/(4t_(0))`

Text Solution

Verified by Experts

The correct Answer is:
3
Speed of stream = speed of raft `=(x)/(2t_(0))`
Because the time interval is `2t_(0)`
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