Home
Class 12
PHYSICS
In the above problem, the change in velo...

In the above problem, the change in velocity cfter covering an angle of `90^(@)` will be

A

zero km//h

B

`300km//h`

C

`600km//h`

D

`300sqrt2 km//h`

Text Solution

Verified by Experts

The correct Answer is:
D
`Delta v = 2v sin (theta)/(2) =2xx300xx sin 45`
`=2xx300(1)/(sqrt2)=sqrt2xx300`
Promotional Banner

Topper's Solved these Questions

  • ATOMS, MOLECULES AND NUCLEI

    NIKITA PUBLICATION|Exercise MCQs|443 Videos

  • COMMUNICATION SYSTEMS

    NIKITA PUBLICATION|Exercise Multiple Choice Questions (Examples for Practice)|8 Videos

Similar Questions

Explore conceptually related problems

A particle is moving on a circular path with constant speed v. The magnitude of the change in its velocity after it has described an angle of 90^(@) is :

In the above problem its velocity after 3 seconds in ms^(-1) is

NIKITA PUBLICATION-CIRCULAR MOTION-Multiple Choice Question
  1. If a particle is moving with uniform velocity 20 m//s on a circular tr...

    Text Solution

    |

  2. If in aeroplane is moving on a circular path with a uniform speed 300 ...

    Text Solution

    |

  3. In the above problem, the change in velocity cfter covering an angle o...

    Text Solution

    |

  4. In the above problem No. 96, if angle turned is 270^(@) then the chang...

    Text Solution

    |

  5. An aeroplane moving in a circular path with a speed 250 km//h. The cha...

    Text Solution

    |

  6. A particle is moving on a circular path with constant speed v then the...

    Text Solution

    |

  7. A particle P is moving in a circle of radius r with a uniform speed u....

    Text Solution

    |

  8. The angular displacement of a second of a clock in 15 s in SI unit is

    Text Solution

    |

  9. If a car is travelling at 20 m//s on a circular road of radius 400m th...

    Text Solution

    |

  10. A car is moving in a circular path of radius 500m with a speed of 30 m...

    Text Solution

    |

  11. If a body is moving withuniform speed of 10 m//s on a circular path of...

    Text Solution

    |

  12. If a speed man is rotated at the end of a long beam of length 5m and ...

    Text Solution

    |

  13. What is the angular speed of rotation about its polar axis, so that th...

    Text Solution

    |

  14. The hour hand and the minute hand of a clock coincide at every relativ...

    Text Solution

    |

  15. If a particle is moving along a circle of radius 3 m with a constant s...

    Text Solution

    |

  16. A flywheel rotates about a fixed axis and slows down from 400 rpm to 2...

    Text Solution

    |

  17. A particle is moving along circular path of radius 40 m with a unifor...

    Text Solution

    |

  18. The speed of a motor increases from 1200 rpm to 1800 rpm in 20 s . How...

    Text Solution

    |

  19. If a particle moves on a circular path of radius 4 m with time period ...

    Text Solution

    |

  20. A particle moves in a circle of radius 25 cm at two revolutions per se...

    Text Solution

    |