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15 May 2012 21:22:40 IST

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383

Vectors (plz help

Engineering Entrance , Medical Entrance , AIPMT , JEE Main , AIIMS , JEE Advanced , Physics

a swimmer can swim in still water with speed v and the river is flowing with velocity v/2. To cross the river in shortest distance, he should swim making angle ? with upstream. What is the time taken to swim across the shortest distance ?

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Tarun Garg

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15 May 2012 21:27:41 IST

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angle=sin^-1(1/root5)

Tarun Garg

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15 May 2012 21:28:53 IST

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ohhhhhhh with upstream 90+angle given above

Tarun Garg

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15 May 2012 21:29:35 IST

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and time=2d/root(5)v

kishan shukla

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15 May 2012 22:58:38 IST

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30*

Tarun Garg

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15 May 2012 23:08:41 IST

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o teri ye mne kya kr dia ulta solve kr dia sory al the answer is 30

Tarun Garg

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15 May 2012 23:09:47 IST

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time=2d/root(3)

Tanmay Goel

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16 May 2012 16:44:35 IST

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can ny1 describe it????

karan gupta

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18 May 2012 18:27:10 IST

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30 degree with the vertical

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