Home
Class 11
PHYSICS
A person crossing a road with a certain ...

A person crossing a road with a certain velocity due north, sees a car moving towards east.The relative velocity of the car w.r.t the person is `sqrt2` times that of the velocity of the person.The angle made by the relative velocity with the east is

A

`30^(@)`

B

`45^(@)`

C

`60^(@)`

D

`90^(@)`

Text Solution

Verified by Experts

The correct Answer is:
B
`vecv_(c)-vecv_(p)=sqrt2vp`
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A PLANE

    NARAYNA|Exercise Level-II(H.W)|31 Videos

  • MOTION IN A PLANE

    NARAYNA|Exercise Level-Vi Integer|9 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 car is moving with velocity vec v_(c) towards north and a train is moving towards east with velocity vec v_(t) . Find the direction of relative velocity of car with respect to train.

A car starting from a point travels towards east with a velocity of 36 kmph . Another car starting from the same point travels towards north with a velocity of 24 kmph . The relative velocity of one with respect to another is

A car is going east wards with a velocity of 8m/s. To the passengers in the car, a train appears to be moving north wards with a velocity of 15 m/s. What is the actual velocity of the train:

A person driving a car with a speed 72 km/h suddenly sees a boy crossing the road. If the distance moved by car, before the person applies brakes is 5 m, the reaction time of the person is

The velocity-time graph of a car moving along a straight road is shown in figure. The average velocity of the car in first 25 seconds is

The velocity-time graph of a car moving along a straight road is shown in figure. The average velocity of the car is first 25 seconds is

Define relative velocity of an object w.r.t. another. Draw position-time graph of two objects moving along a straight line, when their relative velocity is (i) zero and (ii) non-zero.

Two cars are moving in same direction with speed of 40kmh^(-1) Find the relative velocity of first car with another.

A car A moves along north with velocity 30 km/h and another car B moves along east with velocity 40 km/h. The relative velocity of A with respect to B is

A car is moving with a velocity of 60km//h due east and a train is moving with a velocity of 80km//h due south . For a passenger sitting inside the train , what is the velocity of car appearing to him ?

NARAYNA-MOTION IN A PLANE-Level-I (H.W)
  1. If initial velocity of a body is vecu=2veci-2vecj+3veck and the final ...

    Text Solution

    |

  2. A particle is moving eastwards with a velocity 15 ms^(-1).Suddenly it ...

    Text Solution

    |

  3. A person crossing a road with a certain velocity due north, sees a car...

    Text Solution

    |

  4. A Person is walking in rain feels the velocity of rain as twice to his...

    Text Solution

    |

  5. When it is raining vertically down, to a man walking on road the veloc...

    Text Solution

    |

  6. A motor car A is travelling with a velocity of 20m//s in the north-wes...

    Text Solution

    |

  7. A man can swim in still water at a speed of 6 kmph and he has to cross...

    Text Solution

    |

  8. A boat moves perpendicular to the bank with a velocity of 7.2 km//h.Th...

    Text Solution

    |

  9. A swimmer is capable of swimming 1.65 ms^(-1) in still water.If she sw...

    Text Solution

    |

  10. A person swims at 135^(@) to current to river, to meet target on reach...

    Text Solution

    |

  11. The parabolic path of a projectile is represented by y=x/sqrt3-x^(2)/6...

    Text Solution

    |

  12. A body is projected at angle 30^(@) to horizontal with a velocity 50 m...

    Text Solution

    |

  13. A body is projected with velocity 60m//s at 30^(@) to the horizontal.T...

    Text Solution

    |

  14. A body is projected with velocity u such that in horizontal range and ...

    Text Solution

    |

  15. A cricket ball is hit for a six leaving the bat at an angle of 60^(@) ...

    Text Solution

    |

  16. A bomb at rest is exploded and the pieces are scattered in all directi...

    Text Solution

    |

  17. A boy can throw a stone up to a maximum height of 10 m. The maximum h...

    Text Solution

    |

  18. A grass hopper can jump a maximum horizontal distance of 20 .4 cm . I...

    Text Solution

    |

  19. A stone is thrown with a velocity v at an angle theta with the horizon...

    Text Solution

    |

  20. A body is projected with a certain speed at angles of projection of th...

    Text Solution

    |