Home
Class 12
PHYSICS
A boat having a speed of 5km//hr. in sti...

A boat having a speed of `5km//hr`. in still water, crosses a river of width `1km` along the shortest possible path in `15` minutes. The speed of the river in `Km//hr.`

A

1 `km//h`

B

3` km//h`

C

4 `km//h`

D

5 `km//h`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

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 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 per hour in still water crosses a river of width 1 km along the shortest possible path in fifteen minutes. The velocity of the river water in km per hour is :-

A boat which has a speed of 5km/h in still water crosses a river of width 1km along the shortest possible path (zero drift) in 15min . Find the velocity of the river water in km per hour.

The speed of boat is 5 kmh^(-1) in still water. It crosses a river of width 1 km along the shortest possible path in 15 min. Then, velocity of river will be

A boat which has a spped of 5km h^(-1) in still water crosses a river of width 1 km along the shortest possible path in 15 minutes. Calculate the velocity of river water.

DISHA-VECTORS-Physics
  1. A force F=-K(yhati+xhatj) (where K is a positive constant) acts on a p...

    Text Solution

    |

  2. A metal sphere is hung by a string fixed to a wall. The sphere is push...

    Text Solution

    |

  3. A boat having a speed of 5km//hr. in still water, crosses a river of w...

    Text Solution

    |

  4. A man crosses a 320m wide river perpendicular to the current in 4 min....

    Text Solution

    |

  5. P, Q and R are three coplanar forces acting at a point and are in equi...

    Text Solution

    |

  6. As shown in figure the tension in the horizontal cord is 30 N. The wei...

    Text Solution

    |

  7. A boat is moving with a velocity 3 hat i+ 4hat j with respect to groun...

    Text Solution

    |

  8. A person aiming to reach the exactly opposite point on the bank of a s...

    Text Solution

    |

  9. A man can swim with velocity v relative to water. He has to cross a ri...

    Text Solution

    |

  10. A 120 m long train is moving towards west with a speed of 10 m//s. A b...

    Text Solution

    |

  11. What is the value of linear velocity, if vecomega=3hati-4hatj+hatk and...

    Text Solution

    |

  12. If |vec(A)xxvec(B)|=sqrt(3)vec(A).vec(B), then the value of |vec(A)+ve...

    Text Solution

    |

  13. Find the torque of a force vecF= -3hati+hatj+5hatk acting at the poin...

    Text Solution

    |

  14. if|vecAxxvecB|=|vecA.vecB|, then angle between vecA and vecB will be

    Text Solution

    |

  15. The vector vecP=ahatt+ahatj+3hatj and vecQ=ahati-2hatj-hatk, are perpe...

    Text Solution

    |

  16. A particle moves from position 3hatj+2hatj-6hatk to 14hatj+13hatj+9hat...

    Text Solution

    |

  17. The three vectors vecA=3hati-=2hatj+khat,vecB=hati-3hatj+5hatk and ve...

    Text Solution

    |

  18. Two forces vecF(1)=5hati+10hatj-20hatk and vecF(2)=10hati-5hatj-15hatk...

    Text Solution

    |

  19. With respect to a rectangular Cartesian coordinate system, three vecto...

    Text Solution

    |

  20. A boy walks uniformly along the sides of a rectangular park of size 40...

    Text Solution

    |