Home
Class 12
PHYSICS
A ball of mass 0.6 kg attached to a ligh...

A ball of mass `0.6 kg` attached to a light inextensible string rotates in a vertical circle of radius `0.75 m` such that it has speed of `5 ms^(-1)` when the string is horizontal. Tension in the string when it is horizontal on other side is `(g = 10 ms^(-2))`.

A

30 N

B

26 N

C

20 N

D

6 N

Text Solution

Verified by Experts

The correct Answer is:
C
Tension `T = (mv^(2))/(r)=((0.6)(25))/(0.75)=20N`.
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 of mass m attached to an inextensible light string is moving in a vertical circle of radius r. The critical velocity at the highest point is v_( 0) to complete the vertical circle. The tension in the string when it becomes horizontal is

A mass M is hung with a light inextensible string. Tension in horizontal part of string is.

A ball of mass 500g tied to one end of string is revolved in a horizontal circle of radius 10cm with a speed 1//pirev//s in gravity-free space, then the linear velocity, acceleration and tension in the string will be

A stone of mass 1kg tied to a light inextensible sstring of length L=10m is whirling in a circular path of radius L in vertical plane. If the ratio of the maximum tension in the string to the minimmum tension in the string is 4 and if g is taken to be 10ms^(-2) , the speed of the stone at the highest point of the circle is.

A particle of mass 0.2 kg attached to a massless string in a verticle circle of radius 1.2 m. It is imparted a speed of 8 ms^(-1) at the lowest point of its circular path. Does the particle complete the verticle circle ? What is the change in tension in the string when the particle moves from the position where the string is vertical to the position where the string is horizontal ?

A particle of mass 100 g is moving in a vertical circle of radius 2 m The particle is just looping the loop . What is the speed of the particle and tension in the string at the highest point of the circular path ? . (g =10 ms^(-2)) .

A particle of mass 100 g, is made to describe a vertical circle of radius 1 m. Its instantaneous speed is 1ms^(-1) when the string makes an sngle of 30^(@) with the vertical Find the tension in the string at this position. Can the particle complete its circular path? (g=10ms^(-2))

NIKITA PUBLICATION-CIRCULAR MOTION-Multiple Choice Question
  1. A car moves at a constant speed on a road as shown in figure. The norm...

    Text Solution

    |

  2. A coin placed on a gramophone record at 100//3 rpm flies off when it i...

    Text Solution

    |

  3. A ball of mass 0.6 kg attached to a light inextensible string rotates ...

    Text Solution

    |

  4. Four point size metal spheres each of mass 1 kg are placed on a turn t...

    Text Solution

    |

  5. The 'well of death' in a circus consists of a vertical hollow cylinder...

    Text Solution

    |

  6. If a car is taking turn along a circular track, then the necessary for...

    Text Solution

    |

  7. A car is moving along a horizontal curve road, the necessary centripet...

    Text Solution

    |

  8. On a horizontal curved road, the maximum safe speed of a vehicle to mo...

    Text Solution

    |

  9. On a horizontal curved road , the skidding or overturning of a vehicle...

    Text Solution

    |

  10. For the safe driving on unbanked curved road, the minimum radius of cu...

    Text Solution

    |

  11. Sometimes the overturning of vehicle on horizontal curved road takes p...

    Text Solution

    |

  12. The radius of the curved road on a national highway is R. The width of...

    Text Solution

    |

  13. Select the wrong statement

    Text Solution

    |

  14. If a body of mass m is moving along a horizontalcircle of radius R, un...

    Text Solution

    |

  15. An aeroplane is taking a turn in a horizontal plane. While doing so,

    Text Solution

    |

  16. A coin is placed on a rotating platform at distance 'r' from its axis ...

    Text Solution

    |

  17. The arrangement of kepping outer road surface included with the horizo...

    Text Solution

    |

  18. The angle of inclination with the horizontal is

    Text Solution

    |

  19. Banking of roads at curve is necessary so as to avoid

    Text Solution

    |

  20. The maximum speed with which a vehicle can be safely driven along curv...

    Text Solution

    |