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The velocity of a boat in still water is...

The velocity of a boat in still water is `10 m//s`.If water flows in the river with a velocity of `6 m//s` what is the difference in times taken to cross the river in the shortest path and the shortest time.The width of the river is `80 m`.

A

1s

B

10s

C

`(sqrt(3))/(2)s`

D

2s

Text Solution

Verified by Experts

The correct Answer is:
d
`t_(1)=(d)/(sqrt(v_(B)^(2)-v_(W)^(@))),t_(2)=(d)/(v_(B))`
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