Home
Class 12
PHYSICS
A river 400 m wide is flowing at a rate ...

A river `400 m` wide is flowing at a rate of `2.0 m//s.` A boat is sailing at a velocity of `10.0 m//s` with respect to the water In a direction perpendicular to the river.
(a) Find the time taken by the boat to reach the opposite bank.
(b) How far from the point directly opposite to the starting point does the boat reach the opposite bank?

A

80s

B

200s

C

40s

D

20s

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • Mock Test 39: PHYSICS

    AAKASH INSTITUTE|Exercise Example|26 Videos

  • Mock Test 40: PHYSICS

    AAKASH INSTITUTE|Exercise Example|27 Videos

Similar Questions

Explore conceptually related problems

A 400 - m wide river is flowing at a rate of 2.0 m s^-1 . A boat is sailing with a velocity of 10 m s^-1 with respect to the water, in a direction perpendicular to the river. (a) Find the time taken by the boat to reach the opposite bank. (b) How far from the point directly opposite to the starting point does the boat reach the opposite bank ? ( c) In what direction does the boat actually move ?

A river 500m wide is flowing at a rate of 4 m//s. A boat is sailing at a velocity of 10 m//s with respect to the water, in a direction perpendicular to the river. The time taken by the boat to reach the opposite bank

In the previous problem, How far from the point directly opposite to the starting point does the man reach the opposite bank

A river is 20 m wide. River speed is 3 m//s. A boat starts with velocity 2sqrt2 m//s at angle 45^@ from the river current (relative to river) (a) Find the time taken by the boat to reach the opposite bank. (b) How far from the point directly opposite to the starting point does the boat reach the opposite bank?

A river 60m wide is flowing at a rate of 4m/s .A boat is sailing at a velocity of 20 m/s with respect to the river in a direction making an angle 37^(@) with the direction of river flow.Find time taken by the boat in seconds to reach the opposite bank. (A) 2 (B) 3 (C) sqrt(6) (D) 5

A ,man wishing to cross a river flowing with velocity u jumps at an angle theta with the river flow. (a) Find the net velocity of the man with respect to ground if he can swim with speed v in still water. (b) In what direction does the boat actually move ? ( c) Find how far from the point directly opposite to the starting point does the boat reach the opposite bank, if the width of the river is d .

A river flows at 3 m/s and is 300 m wide . A man swing across the rivers with a velocity of 2 m/s directed always perpendicular to the flow of current . (a) How long does it take the man to cross the river ? (b) In what direction does he actually moves to cross the relative to the shore ? (c) How far down the fiver(from the starting point ) does he reach the opposite bank?

Velocity of the boat with respect to river is 10m/s. From point A it is steered in the direction shown. Where will it reach on the opposite bank ?

Questions|River Boat Problem |Shortest Time |To Reach Opposite to the Starting Point

AAKASH INSTITUTE-MOCK TEST 4 -Example
  1. Two force vectors vecF1 and vecF2 , each of magnitude 10 N act at a po...

    Text Solution

    |

  2. The resultant vector of of bar(OA) = 2hati + 3hatj + 6hatk and bar(OB)...

    Text Solution

    |

  3. If vecA + vecB = vecC and absA^2 + absB^2 = absC^2 , then angle betwee...

    Text Solution

    |

  4. The magnitude of resultant vectors of two vectors given by vecA = 10ha...

    Text Solution

    |

  5. The velocity vector at a point A varies with time as vecv=ahati+bthat...

    Text Solution

    |

  6. The velocity varies with time as vecv = ahati + bthatj , where a and ...

    Text Solution

    |

  7. vecP is resultant of vecA and vecB. vecQ is resultant of vecA and -vec...

    Text Solution

    |

  8. A particle moves along the parabolic path x = y^2 + 2y + 2 in such a w...

    Text Solution

    |

  9. When two vectors vecA and vecB of magnitudes a and b respectively are ...

    Text Solution

    |

  10. Two vectors of equal magnitude are acting through a point. The magnitu...

    Text Solution

    |

  11. The resultant of two forces acting at an angle of 150° is10 kgwt, and ...

    Text Solution

    |

  12. P,Q and R are three coplanar forces acting at a point and are in equil...

    Text Solution

    |

  13. The position of a particle moving in x-y plane changes with time t giv...

    Text Solution

    |

  14. A particle moves in plane with acceleration veca = 2hati+2hatj. If vec...

    Text Solution

    |

  15. Rain is falling vertically with a velocity of 3kmh^-1. A man walks in ...

    Text Solution

    |

  16. A person moves due east at speed 10 m/s and feels the wind is blowing ...

    Text Solution

    |

  17. A ship A is moving Westwards with a speed of 10kmh^(-1) and a ship B 1...

    Text Solution

    |

  18. A train travels 180 km at a uniform speed. If the speed had been 9 km/...

    Text Solution

    |

  19. A river 400 m wide is flowing at a rate of 2.0 m//s. A boat is sailing...

    Text Solution

    |

  20. Rain is falling vertically with velocity 10m/s and a man is moving hor...

    Text Solution

    |