Home
Class 12
PHYSICS
A particle goes round a circular path wi...

A particle goes round a circular path with uniform speed v.After describing half the circle, what is the change in its centripetal acceleration?

A

`(v^(2))/(r)`

B

`(2v^(2))/(r)`

C

`(2v^(2))/(pir)`

D

`(v^(2))/(pir)`

Text Solution

Verified by Experts

The correct Answer is:
B
`Delta a =2a "sin" (theta)/(2)=(2v^(2))/(r)xx1=(2v^(2))/(r) m//s`.
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 moves in a circular path with a uniform speed. Its motion is

A particle revolves round a circular path with a constant speed. (i) the velecity of the particle is along the tangent. (ii) the acceleration of the particle of the particle is always towards center. (iii) the magnetic of acceleration is constant. (iv) The work done by the centripetal force is always zero.

A particle is moving around a circular path with uniform angular speed (x) . The radius of the circular path is (r). The acceleration of the particle is:

STATEMENT-1: When a particle moves in a circle with a uniform speed, it velocity and acceleration both changes. STATEMENT-2: The centripetal acceleration in circular motion is depdendent on angular velocity of the body.

A car goes around uniform circular track of radius R at a uniform speed v once in every T seconds. The magnitude of the centripetal acceleration is a_(c) . If the car now goes uniformly around a larger circular track of radius 2R and experiences a centripetal acceleration of magnitude 8a_(c) , then its time period is

A particle revolves round a circular path. The acceleration of the particle is

A particle is moving on a circular path with constant speed, then its acceleration will be

A particle moves with uniform speed in a circular path the angle between intantaneous celocity and acceleration is

A particle is moving on a circular path of radius r with uniform speed v. What is the displacement of the particle after it has described an angle of 60^(@) ?

NIKITA PUBLICATION-CIRCULAR MOTION-Multiple Choice Question
  1. A racing completes three rounds on a circular racing track in one minu...

    Text Solution

    |

  2. The extremity of the hour hand of a clock moves (1//20)^(th) as the mi...

    Text Solution

    |

  3. A particle goes round a circular path with uniform speed v.After descr...

    Text Solution

    |

  4. The ratio of angular speeds of minute hand and hour hand of a watch is

    Text Solution

    |

  5. A glass marble moves from one end of a semiciecular arc of radius R to...

    Text Solution

    |

  6. If an automobile moves round a curve of radius 300 m at constant speed...

    Text Solution

    |

  7. In the above question , the manitude of the instantaneous acceleration...

    Text Solution

    |

  8. In the above question, the magnitude of the average acceleration over ...

    Text Solution

    |

  9. Ration of angular velocity of hour hand of a clock to self rotation of...

    Text Solution

    |

  10. If a car moves with a velocity of 45 kmph, angular velocity of its wh...

    Text Solution

    |

  11. The acceleration of an athlete running at 36 kmph when neotiating a tu...

    Text Solution

    |

  12. A motor car is travelling at 30 m//s on a circular track of radius 450...

    Text Solution

    |

  13. The speed of the wheel of an engine changes from 600 rpm to 1200 rpm i...

    Text Solution

    |

  14. The length of second's hand in watch is 1 cm. The change in Velocity o...

    Text Solution

    |

  15. A mass 2 kg is whirled in a horizontal circle by means of a string at ...

    Text Solution

    |

  16. The second 's hand of a watch has length 6 cm. Speed of end point and ...

    Text Solution

    |

  17. A particle comes round a circle of radius 1 m once. The time taken b...

    Text Solution

    |

  18. A wheel completes 2000 revolutions to cover the 9.5 km. distance. the...

    Text Solution

    |

  19. A belt passes over a wheel of radius 25 cm. If a point on the belt has...

    Text Solution

    |

  20. Two bodies of masses 8 kg and 4 kg are moving in concentric circular o...

    Text Solution

    |