Home
Class 11
PHYSICS
A particle is tied to 20 cm long string....

A particle is tied to 20 cm long string. It performs circular motion in vertical plane. What is the angular velocity of string when the tension in the string at the top is zero

A

`5 rad//sec`

B

`2 rad//sec`

C

`7.5 rad//sec`

D

`7 rad//sec`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • MOTION IN ONE DIMENSION

    ERRORLESS |Exercise Motion In One Dimension|24 Videos

  • NEWTONS LAWS OF MOTION

    ERRORLESS |Exercise Self Evaluation Test|16 Videos

Similar Questions

Explore conceptually related problems

One end of a string of length 1 m is tied to a body of mass 0.5 kg. It is whirled in a vertical circle with angular velocity 4 rad s^(-1) . Find the tension in the string when the body is at the lower most point of its motion. (take, g = 10 ms^(-1) )

A particle tide to the end of a string oscillates along a circular arc in a vertical plane. The other end of the string is fixed at the center of the circle. If the string has a breaking strength of twice the weight of the particles, a. find the maximum distance that the particle can cover in one cycle of oscillation. The length of the string is 50cm . b. Find the tension in the extreme position. c. Find the acceleration of the particle at bottom and extreme position.

A particle tied to a string describes a vertical circular motion of radius r continually. If it has a velocity sqrt(3 gr at the highest point, then the ratio of the respective tensions in the string holding it at the highest and lowest points is

A body of mass m is tied to a string of length l and whirled in a verticle cirlce. The velocity of the body at the lowest position is u. Then the tension in the string at a position when the string makes an angle theta with the vertical is

A particle is moving in a circular path in the vertical plane. It is attached at one end of a string of length l whose other end is fixed. The velocity at lowest point is u . The tension in the string T and acceleration of the partiocle is a any position. Then T a is zero at highest point if

A particle tied to a string moves in a circular path in vertical plane. Its velocity at lowerst point is such that it just completes circle. Find the ratio of resultant force on particle at the lowerst point to that at highest point.

One end of a string of length 1.0 m is tied to a body of mass 0.5 kg . It is whirled in a vertical circle with angular frequency 4 rads^(-1) .The tension in the string when the body is at the lower most points of its motion will be equal to (Take ,g =10ms^(-2))

A particle tied to a string describes a vertical circular motion of radius r continually if it has a velocity sqrt(3gr) at the highest point, then the ratio of the respective tensions in the string holding it at the highest point and lowest points is:

ERRORLESS -MOTION IN TWO DIMENSION-Exercise
  1. A pendulum bob on a 2 m string is displaced 60^(@) from the vertical a...

    Text Solution

    |

  2. A fan is making 600 revolutions per minute. If after some time it make...

    Text Solution

    |

  3. A particle is tied to 20 cm long string. It performs circular motion ...

    Text Solution

    |

  4. A stone tied with a string, is rotated in a vertical circle. The mini...

    Text Solution

    |

  5. For a particle in a non-uniform accelerated circular motion

    Text Solution

    |

  6. A fighter plane is moving in a vertical circle of radius 'r'. Its min...

    Text Solution

    |

  7. A ball is moving to and fro about the lowest point A of a smooth hemis...

    Text Solution

    |

  8. A stone of mass m is tied to a string and is moved in a vertical circl...

    Text Solution

    |

  9. As per given figure to complete the circular loop what should be the r...

    Text Solution

    |

  10. A coin, placed on a rotating turntable slips, when it is placed at a d...

    Text Solution

    |

  11. When a celling fan is switched off, its angular velocity falls to half...

    Text Solution

    |

  12. A body crosses the topmost point of a vertical circle with a critical ...

    Text Solution

    |

  13. A simple pendulum oscillates in a vertical plane. When it passes throu...

    Text Solution

    |

  14. A particle is moving in a vertical circle with constant speed. The tan...

    Text Solution

    |

  15. A Particle is kept at rest at the top of a sphere of diameter 42m.when...

    Text Solution

    |

  16. The coordinates of a moving particle at any time 't' are given by x = ...

    Text Solution

    |

  17. A small disc is on the top of a hemisphere of radius R. What is the sm...

    Text Solution

    |

  18. A body of mass 0.4 kg is whirled in a vertical circle making 2 rev/sec...

    Text Solution

    |

  19. A bucket full of water is revolved in vertical circle of radius 2 m . ...

    Text Solution

    |

  20. Figure shows a body of mass m moving with a uniform speed v along a ci...

    Text Solution

    |