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

`10km//hr`

B

`20km//hr`

C

`30km//hr`

D

`40km//hr`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • UNITS, DIMENSION & MEASUREMENTS

    ERRORLESS |Exercise All Questions|333 Videos

  • WAVES AND SOUND

    ERRORLESS |Exercise SET|25 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.

ERRORLESS -VECTORS-Exercise
  1. As shown in figure the tension in the horizontal cord is 30 N. The wei...

    Text Solution

    |

  2. Two cars are moving in the same direction with the same speed 30 km//h...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  5. A river is flowing from east to west at a speed of 5m//min. A man on s...

    Text Solution

    |

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

    Text Solution

    |

  7. A moves with 65km//h while B is coming back of A with 80km//h. The rel...

    Text Solution

    |

  8. A thief is running away on a straight road in a moving with a speed of...

    Text Solution

    |

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

    Text Solution

    |

  10. A man sitting in a bus travelling in a direction from west to east wit...

    Text Solution

    |

  11. A boat takes two hours to travel 8 km and back in still water. If the ...

    Text Solution

    |

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

    Text Solution

    |

  13. A boat crosses a river with a velocity of 8(km)/(h). If the resulting ...

    Text Solution

    |

  14. If a vector vec(A) make angles alpha , beta and gamma, respectively ,...

    Text Solution

    |

  15. If the resultant of n forces of different magnitudes acting at a point...

    Text Solution

    |

  16. Can two vectors of different magitudes be combind to give zero resulta...

    Text Solution

    |

  17. The sum of the magnitudes of two forces acting at a point is 18 and th...

    Text Solution

    |

  18. A vector vec(a) is turned without a change in its length through a sma...

    Text Solution

    |

  19. Find the resultant of the three vectors vec(OA), vec(OB) and vec(OC) s...

    Text Solution

    |

  20. ABCDEF is a regular hexagon, Fig. 2 (c ) .65. What is the value of ...

    Text Solution

    |