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The speed of swimmer in still water is 2...

The speed of swimmer in still water is 20 m/s. The speed of river water is 10 m/s and is flowing due east. If he is standing on the south bank and wishes to cross the river along the shortest path, the angle at which he should make this strokes w.r.t.north is given by:

A

`60^@` west

B

`45^@` west

C

`30^@` west

D

`0^@`

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TARGET PUBLICATION-Motion in a plane-Exercise
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  6. A body projected from the ground reaches a point 'X' in its path after...

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  7. Three projectiles A, B and Care projected at an angle of 30^@, 45^@, 6...

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  11. A body projected from the ground reaches a point 'X' in its path after...

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  12. The velocity of a projectile at the initial point A is (2hat i+ 3hat j...

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  13. A projectile is given an initial velocity of hat i+2hatj. The Cartesia...

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  14. A body is projected vertically upwards with a velocity of 10 ms^-1 and...

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  15. The maximum height attained by projectile is increased by 10%, by chan...

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  16. A particle is projected with a velocity v so that its horizontal range...

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  17. A particle moves so that its position vector is given by vec r= cos om...

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