Home
Class 11
PHYSICS
A man who swims at a speed of 5km//h wan...

A man who swims at a speed of `5km//h` wants to cross a `500m` wide stream flowing at `4km//h` and reach the point which is directly opposite to his starting point. If he reaches a point somewhere else he has to walk back to desitination, his walking speed being `2km//h`. Find the minimum time in which he can reah his destination.

A

5 min

B

10 min

C

15 min

D

20 min

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • KINEMATICS 1

    DC PANDEY ENGLISH|Exercise MCQ_TYPE|27 Videos

  • KINEMATICS 1

    DC PANDEY ENGLISH|Exercise COMPREHENSION_TYPE|19 Videos

  • KINEMATICS

    DC PANDEY ENGLISH|Exercise INTEGER_TYPE|10 Videos

  • LAWS OF MOTION

    DC PANDEY ENGLISH|Exercise Medical entrances gallery|39 Videos

Similar Questions

Explore conceptually related problems

A man can swim in still water ast a speed of 3 km/h. He wants to cross a river that flows at 2 km/h and reach the point directly oposite to his starting point. A. In which diretionshoeld he try to swim (that is, find the angle his body makes wilth the river flow)? b. How much time will he take to cross the river if the river is 500 m wide?

A train of length 120 m travels at a speed of 57 km/h. In what time it will pass a man who is walking at 3 km/h in the opposite direction?

A man can swim at the rate of 5 kmh^(-1) in still water A. One km wide river flows at the rate of 3 kmh^(-1) . The man wishes to swim across the river directly opposite to the starting point. How much time will be take to cross the river

A man can swim at a speed of 3 km h^-1 in still water. He wants to cross a 500-m wide river flowing at 2 km h^-1 . He keeps himself always at an angle to 120^@ with the river flow while swimming. The time taken to cross the river is.

A man can swim at a speed of 5 km/h W.r.t water. He wants to cross a 1.5 km wide river flowing at 3 km/h. He keeps himself always at an angle of 60° with the flow of direction while swimming, The time taken by him to cross the river will be

A man can swim at a speed of 3 km/h in still water. He wants t cross a 500 m wide river flowing at 2 km/h. He flow at an angle of 120 with the river flow while swimming. A. Find the time he takes to cross the river. b.At what point on the opposite bank will he arrive?

A man wishes to cross a river of width 120 m by a motorboat. His rowing speed in still water is 3 m//s and his maximum walking speed is 1m//s . The river flows with velocity of 4 m//s . (a) Find the path which he should take to get to the point directly opposite to his starting point in the shortest time. (b) Also, find the time which he takes to reach his destination.

A man can swim in still water at a speed of 6 kmph and he has to cross the river and reach just opposite point on the other bank. If the river is flowing at a speed of 3 kmph, he has to swim in the direction

A man can swim at a speed of 3 km h^-1 in still water. He wants to cross a 500-m wide river flowing at 2 km h^-1 . He keeps himself always at an angle to 120^@ with the river flow while swimming. The drift of the man along the direction of flow, when he arrives at the opposite bank is.

A swimmer wishes to cross a 500 m river flowing at 5 km h^-1 . His speed with respect to water is 3 km h^-1 . The shortest possible time to cross the river is.

DC PANDEY ENGLISH-KINEMATICS 1-INTEGER_TYPE
  1. A man who swims at a speed of 5km//h wants to cross a 500m wide stream...

    Text Solution

    |

  2. A stone is dropped from a certain height which can reach the ground in...

    Text Solution

    |

  3. A car starts moving along a line, first with acceleration a=5m//s^(2) ...

    Text Solution

    |

  4. Two particles P and Q simultaneously start moving from point A with ve...

    Text Solution

    |

  5. If a particle takes t second less and acquire a velocity of vms^(-1) m...

    Text Solution

    |

  6. Speed time graph of two cars A and B approaching towards each other is...

    Text Solution

    |

  7. The acceleration-time graph of a particle moving along a straight line...

    Text Solution

    |

  8. A lift performs the first part of its ascent with uniform acceleration...

    Text Solution

    |

  9. A small electric car has a maximum constant acceleration of 1m//s^(2),...

    Text Solution

    |

  10. The diagram shows the variatioin of 1//v (where v is velocity of the p...

    Text Solution

    |

  11. Two particles are moving with velocities v(1)=hati-thatj+hatk and v(2)...

    Text Solution

    |

  12. A particle A moves with velocity (2hati-3hatj)m//s from a point (4,5m)...

    Text Solution

    |

  13. A ball is thrown upwards with a speed of 40m//s. When the speed become...

    Text Solution

    |

  14. Figure shows the velocity time graph for a particle travelling along a...

    Text Solution

    |

  15. Two bodies A and B are moving along y-axis and x -axis as shown. Find ...

    Text Solution

    |

  16. The 1//v versus positions graph of a particle is shown in the figure, ...

    Text Solution

    |