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A river is flowing from West to East at ...

A river is flowing from West to East at a speed of 8 m per min A. man on the South bank of the river, capable of swimming at 20 m/min in still water, wants to swim across the river in the shortest time. He should swim in a direction.

A

Due north

B

`30^(@)` east of west

C

`30^(@)` west of north

D

`60^(@)` east of north

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AAKASH SERIES-MOTION IN A PLANE-EXERCISE-A (Relative velocity)
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  6. A river is flowing from West to East at a speed of 8 m per min A. man ...

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  7. Galileo writes that for angles of projection of a projectile at angles...

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  8. Keeping the velocity of projection constant, the angle of projection i...

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  9. Keeping the velocity of projection constant, the angle of projection i...

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  10. A projectile has

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  11. Two particles are projected in air with speed u at angles theta(1) and...

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  12. If a body is projected with an angle theta to the horizontal then

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  13. In the following questions a statement of assertion (A) is followed by...

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  14. Two bullets are fired simultaneously, horizontally and with different ...

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  15. A number of bullets are fired horizontally with different velocities f...

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  16. For body thrown horizontally from the top of a tower,

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  17. A stone is just dropped from the window of a train moving along a hori...

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  18. A and B are two trains moving parallel to each other. If a ball is thr...

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