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Boat moves with velocity 5 m/s on still ...

Boat moves with velocity 5 m/s on still water. It is steered perpendicular to the river current.
(a) Will it reach point B or somewhere else on the other bank ?
(b) How long will it take to cross the river?
(c) How far down stream, will it reach the other bank ?
(d) Does it take minimum time in this way ?

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The correct Answer is:
(a) Somewhere down stream (b) 8s (c) 16 m (d) Yes
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