Home
Class 11
PHYSICS
A swimmer can swim with a velocity of 10...

A swimmer can swim with a velocity of 10 kmph w.r.t the water flowing in a river with a velocity of 5 kmph.
What will be the time taken to reach the opposite side, if its is 1 km away ?

Text Solution

Verified by Experts

Time taken to the reach the other side of the bank`=(AB)/(v_(AB))=1/(sqrt(10^2-5^2))h=0.115h`
=6.9 min
Promotional Banner

Topper's Solved these Questions

  • MOTION IN PLANE

    SUBHASH PUBLICATION|Exercise FIVE MARKS QUESTIONS WITH ANSWERS|6 Videos

  • MOTION IN A STRAIGHT LINE

    SUBHASH PUBLICATION|Exercise NUMERICALS WITH SOLUTIONS|28 Videos

  • OSCILLATIONS

    SUBHASH PUBLICATION|Exercise NUMERICALS WITH SOLUTIONS|41 Videos

Similar Questions

Explore conceptually related problems

A swimmer can swim with a velocity of 10 kmph w.r.t the water flowing in a river with a velocity of 5 kmph. In what direction should he swim to reach the point on the other bank just opposite to his starting point ?

Two cars are approaching each other on a straight road and moving with a velocity of 60 kmph. If the sound produced in one car is of frequency 500 Hz, what will be the frequency of sound as heard by a person sitting in another car ? When the car has crossed and moving away from each other , what will be the frequency of sound as heard by the same period ? (speed of sound in air is 332 ms^(-1) )

The kinetic energy of an object of mass in moving with a velocity of 5ms^(-1) is 25 J. What will be its kinetic energy when its velocity is doubled? What will be its kinetic energy when its velocity is increased three times?

A ball is thrown at an angle of 30^(@) with respect to the horizontal from the top of a tower 100m high with a speed of 40ms^(-1) . Calculate the time taken by the ball to reach the foot of the tower. With what velocity will the ball hit the ground ? (g=10ms^(-2))

A stone is thrown in a vertically upward direction with a velocity of 5m/s. If the acceleration of the stone during its motion is 10 m//s^(2) in the downward direction, what will be the height attained by the stone and how much time will it take to reach there?

Velocity of the river water is 3m/s and velocity of a boat in still waters in 5m/s. If the distance between the banks of a river is 50 m, then calculate the time taken for (ii) longest distance to cover.

Velocity of the river water is 3m/s and velocity of a boat in still waters is 5m/s. If the distance between the banks of a river is 50 m, then calculate the time taken for (i) shortest distance to cover

A man can swim with a speed of 4.0 km/h in still water . How long does he take to cross a river 1.0 km wide if the river flows steadily at 3.0 km/h and he makes his strokes normal to the river current ? How far down the river does he go when he reaches the other bank ?

SUBHASH PUBLICATION-MOTION IN PLANE-NUMERICALS WITH SOLUTIONS
  1. Write the values of the following hatk.hatk

    Text Solution

    |

  2. A swimmer can swim with a velocity of 10 kmph w.r.t the water flowing ...

    Text Solution

    |

  3. A swimmer can swim with a velocity of 10 kmph w.r.t the water flowing ...

    Text Solution

    |

  4. The angle between the vectors barA and barB is 60^(@). What is the rat...

    Text Solution

    |

  5. Determine the unit vector which is perpendicular to both barA=2hati+ha...

    Text Solution

    |

  6. Show that vectors (i+2j+3hatk) and (2hati-hatj) are perpendicular to e...

    Text Solution

    |

  7. The position of a particle is given by barr=(3.0thati-2.0t^2hatj+4.0ha...

    Text Solution

    |

  8. Find the angular velocity of a particle moving around a circular path ...

    Text Solution

    |

  9. Calculate the angular acceleration of a particle executing uniform cir...

    Text Solution

    |

  10. If the tangential acceleration of a particle around a circular path is...

    Text Solution

    |

  11. Calculate the centripetal force on a particle of mass 0.020 kg revolvi...

    Text Solution

    |

  12. An aircraft executes a horizontal loop of radius 500m with a uniform s...

    Text Solution

    |

  13. A stone tied to one end of a string of radius 0.6m is whirled in a hor...

    Text Solution

    |

  14. A simple pendulum of length 1.5m is held horizontally and then release...

    Text Solution

    |

  15. Calculate the minimum and maximum tensions in a string of length 1m, o...

    Text Solution

    |

  16. Given that the angle of banking is equal to 30^(@) and radius of the c...

    Text Solution

    |

  17. A ball is thrown vertically upwards with a velocity of 50ms^(-1) and t...

    Text Solution

    |

  18. A projectile is launched into space at an angle of 60^(@) with an init...

    Text Solution

    |

  19. A projectile is launched into space at an angle of 60^(@) with an init...

    Text Solution

    |

  20. A projectile is launched into space at an angle of 60^(@) with an init...

    Text Solution

    |