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A swimmer is capable of swimming at 1.65...

A swimmer is capable of swimming at 1.65ms- in still water. If he swims directly across a 180m wide river with water flow at 0.85`ms^(-1)`', how far down stream will he reach? How long will it take to reach the other side ?

A

1.82 min

B

20 min

C

4 min

D

4.8 min

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The correct Answer is:
A
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AAKASH SERIES-MOTION IN A PLANE -Practice Exercise
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  9. A body is projected with velocity 24 ms^(-1) making an angle 30° with ...

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  10. A body projected with velocity 30 ms^(-1) reaches its maximum height ...

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  11. The potential energy of a projectile at its maximum height is equal to...

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  12. Two bodies are thrown at angles theta and (90- theta ) from the sa...

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  13. The minimum and maximum velocities of a projectile are 10ms^(-1) and 2...

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  14. A body is projected with an initial velocity of 58.8 m/s at angle 60° ...

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  15. A body is projected at 60° with the horizontal with velocity of 10sqrt...

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  16. If the equation of motion of a projectile is y = 3x -1/8 x^(2), the ra...

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  17. The time of flight of a projectile is related to its horizontal range ...

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  18. The velocity at the maximum height of a projectile is sqrt(3)/2 time...

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  19. A ball is projected at an angle 30° with the horizontal with the veloc...

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  20. A body is projected at angle 30° to the horizontal with a velocity 50 ...

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