Home
Class 11
PHYSICS
A man standing on a road has to hold his...

A man standing on a road has to hold his umbrella at `30^0` with the vertical to keep the rain away. The throws the umbrella and starts running at 10 km/h. He finds that raindrops are hitting his head vertically. Find the speed of raindrops with respect to a. the road, b. the moving man.

A

`12km//hr`

B

`14km//hr`

C

`16km//hr`

D

`18km//hr`

Text Solution

Verified by Experts

The correct Answer is:
C
`V_(RM)/V_(MG)=tan 53^(@)=4/3` When the man is running
`rArr V_(RM)=4/3V_(MG)=4/3xx12=16km//hr`
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A PLANE

    NARAYNA|Exercise Level -V Multi answer|18 Videos

  • MOTION IN A PLANE

    NARAYNA|Exercise Level -V Passage|15 Videos

  • MOTION IN A PLANE

    NARAYNA|Exercise NCERT BASED QUES. PASSAGE|8 Videos

  • MECHANICAL PROPERTIES OF SOLIDS

    NARAYNA|Exercise LEVEL-II (H.W)|24 Videos

  • MOTION IN A STRAIGHT LINE

    NARAYNA|Exercise Level 2 H.W|29 Videos

Similar Questions

Explore conceptually related problems

A man standing on a road has to hold his umbrella at 30^0 with the veetical to keep the rain away. The throws the umbrella and starts running at 10 km/h. He finds tht raindrops are hitting his head vertically. Find the speed of raindrops with respect to a. the road, b. the moving man.

A man standing on a road has to hold his umbrella at 30^(@) with the vertical to keep the rain away. He throws the umbrella and starts running at 10km/hr. He finds that rain drop are hitting his head vertically. Find the speed of rain drops with respect to (a) road (b) the moving man.

A person standing on a road has to hold his umbrella at 60^(0) with the verticcal to keep the rain away. He throws the umbrella an starts running at 20 ms^(-1) . He finds that rain drops are hitting his head vertically. Find the speed of the rain drops wigh respect to (a) the road (b) the moving person.

A person standing on a road has to hold his umbrellat at 45^@ with the vertical to deep the rain away . He throws the umbtella and starts running at 30 ms^(-1) . He find that the rain drops are hitting his head vertically. Fing the speed of the rain drops with respect to (a) road (b) the moving person.

A man running with velocity 3m//s finds that raindrops are hitting him vertically with a speed of 4m//s . Magnitude of velocity of the raindrops is

A man running with velocity 3m//s finds that raindrops are hitting him vertically with a speed of 4m//s . Raindrops are falling at an angle theta with the vertical. Value of theta is

Statement -1 : A man standing on the ground has to hold his umbrella at an angle theta with the vertical to protect himself from rain. It is possible that the man now starts running on the ground with certain speed, but he still has to hold his umbrella at angle theta with the vertical to protect himself from rain. Statement -2 : Vertical component of velocity of rain w.r.t man does not change. if he starts running on a horizontal ground.

To a stationary man, rain appears to be falling at his back at an angle 30^@ with the vertical. As he starts moving forward with a speed of 0.5 m s^-1 , he finds that the rain is falling vertically. The speed of rain with respect to the moving man is.

To a stationary man, rain appears to be falling at his back at an angle 30^@ with the vertical. As he starts moving forward with a speed of 0.5 m s^-1 , he finds that the rain is falling vertically. The speed of rain with respect to the stationary man is.

NARAYNA-MOTION IN A PLANE-Level -V Single answer
  1. Consider a collection of a large number of particles each with speed v...

    Text Solution

    |

  2. A man in a row boat must get from point A to point B on the opposite b...

    Text Solution

    |

  3. A man standing on a road has to hold his umbrella at 30^0 with the ver...

    Text Solution

    |

  4. A motor boat has a speed of 5 m//s.At time t=0,its position vector rel...

    Text Solution

    |

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

    Text Solution

    |

  6. A block of mass m in floating in a river flowing with a velocity of 2m...

    Text Solution

    |

  7. From a point on the ground at a distance a from the foot of a pole, a ...

    Text Solution

    |

  8. A heavy particle is projected with a velocity at an angle with the hor...

    Text Solution

    |

  9. A fixed morter fires a bomb at an angle of 53^@ above the horizontal w...

    Text Solution

    |

  10. The angular elevation of an enemy's position on a hill 'h' ft height i...

    Text Solution

    |

  11. Two particles are projected simultaneously with the same speed v in th...

    Text Solution

    |

  12. Figure shows a sphere moving in a steady flow of air in the x-directio...

    Text Solution

    |

  13. A very broad elevator is going up vertically with a constant accelerat...

    Text Solution

    |

  14. A boy throws a ball upward with velocity v(0)=20m//s. The wind imparts...

    Text Solution

    |

  15. A particle is projected from an inclined plane OP1 from A with velocit...

    Text Solution

    |

  16. A particle is projected with a certain velocity at an angle prop above...

    Text Solution

    |

  17. A particle is projected at an angle 60^@ with speed 10(sqrt3)m//s, fro...

    Text Solution

    |

  18. A particle is projected from a point A with velocity usqrt2 at an angl...

    Text Solution

    |

  19. A particle is dropped from point P at time t = 0. At the same time an...

    Text Solution

    |

  20. Shots are fired simultaneously from the top and bottom of a vertical c...

    Text Solution

    |