Home
Class 12
PHYSICS
A boat which has a speed of 5kmh^(-1) in...

A boat which has a speed of `5kmh^(-1)` in still water crosses a river of width 1 km along the shortest possible path in 15 min. The velocity of the river water in `km h^(-1)` is

A

5

B

1

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A STRAIGHT LINE & PLANE

    VMC MODULES ENGLISH|Exercise ENABLE|50 Videos
  • MOTION IN A STRAIGHT LINE & PLANE

    VMC MODULES ENGLISH|Exercise EFFICIENT|50 Videos
  • MOCK TEST 9

    VMC MODULES ENGLISH|Exercise PHYSICS (SECTION 2)|5 Videos
  • Motion in Straight Line

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE-J|10 Videos

Similar Questions

Explore conceptually related problems

A boat which has a speed of 6km/h in still water crosses a river of width 1 km along the shortest possible path in 20 min. the velocity of the river water in km/h is

A boat which has a speed of 5 km// hr in steel water crosses a river of width 1 km along the shortest possible path in 15 minutes . The velocity of the river water in km// hr is

A boat which has a speed of 5 km// hr in steel water crosses a river of width 1 km along the shortest possible path in 15 minutes . The velocity of the river water in km// hr is

A man can swim in still water with a speed of 2 ms^-1 . If he wants to cross a river of water current speed sqrt(3) ms^-1 along the shortest possible path, then in which direction should he swim ?

The width of river is 1 km. The velocity of boat is 5 km/hr. The boat covered the width of river with shortest will possible path in 15 min. Then the velocity of river stream is:

A man can swim with a speed of 4kmh^(-1) in still water. He crosses a river 1km wide that flows steadly at 3kmh^(-1) . If he makes his strokes normal to the river current, how far down the river does he go when he reaches the other bank?

A boat crosses a river with a velocity of 8(km)/(h) . If the resulting velocity of boat is 10(km)/(h) then the velocity of river water is

A boat man can row with a speed of 10 km/hr. in still water. The river flow steadily at 5 km/hr. and the width of the river is 2 km. if the boat man cross the river with reference to minimum distance of approach then time elapsed in rowing the boat will be:-

A river flows with a speed more than the maximum speed with which a person can swim in still water. He intends to cross the river by the shortest possible path (i.e., he wants to reach the point on the opposite bank which directly opposite to the starting point). Which of the following is correct ?

A man can swim in still water at a speed of 4 kmph. He desires to cross a river flowing at a speed of 3 kmph in the shortest time interval. If the width of the river is 3km time taken to cross the river (in hours) and the horizontal distance travelled (in km) are respectively

VMC MODULES ENGLISH-MOTION IN A STRAIGHT LINE & PLANE -IMPECCABLE
  1. A boat which has a speed of 5kmh^(-1) in still water crosses a river o...

    Text Solution

    |

  2. From a ballon rising vertically upwards at 5 m/s, a stone is thrown up...

    Text Solution

    |

  3. Two spheres of same size, one of mass 2 kg and another of mass 4 kg, a...

    Text Solution

    |

  4. A ball is projected upwards from a height h above the surface of the e...

    Text Solution

    |

  5. A car accelerates from rest at constant rate for the first 10 s and co...

    Text Solution

    |

  6. metro train starts from rest and in five seconds achieves a speed 108 ...

    Text Solution

    |

  7. If reation between distance and time is s =a + bt + ct ^(2) find initi...

    Text Solution

    |

  8. A car moves from X to Y with a uniform speed vu and returns to X with ...

    Text Solution

    |

  9. A man throws balls with same speed vertically upwards one after the ot...

    Text Solution

    |

  10. The position x of a particle with respect to time t along x-axis is gi...

    Text Solution

    |

  11. A paricle stating from the (o,o) moves in a stainght line in the (x,y)...

    Text Solution

    |

  12. A particle moving along x-axis has acceleration f, at time t, given f=...

    Text Solution

    |

  13. The acceleration of a particle is increasing linerly with time t as bt...

    Text Solution

    |

  14. A body is projected horizontally with a velocity of 4 ms^(-1) from the...

    Text Solution

    |

  15. A bullet fired into a fixed target loses half of its velocity after pe...

    Text Solution

    |

  16. If acceleration of a particle at any time is given by a = 2t + 5 Ca...

    Text Solution

    |

  17. A particle moving with a uniform acceleration travels 24 m and 64 m i...

    Text Solution

    |

  18. A body is moving with uniform acceleration covers 200 m in the first 2...

    Text Solution

    |

  19. Which of the folowing can be zero, when a particle is in motion for so...

    Text Solution

    |

  20. A parachutist, after bailing out, falls 50 m without friction, When th...

    Text Solution

    |

  21. A body is projected veritclaly upwards.The times corresponding to heig...

    Text Solution

    |