Home
Class 11
PHYSICS
A mass of 10kg is whirled in a horizonta...

A mass of 10kg is whirled in a horizontal circle by means of a string at an initial speed of 5 r.p.m. Keeping the radius constant , the tension in the string is quadrupled. The new speed is nearly

A

14 r.p.m.

B

10r.p.m.

C

2.25 r.p.m.

D

7 r.p.m.

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • MEASUREMENTS

    TARGET PUBLICATION|Exercise EVALUATION TEST|17 Videos

  • OPTICS

    TARGET PUBLICATION|Exercise EXERCISE|447 Videos

Similar Questions

Explore conceptually related problems

A mass of 2 kg is whirled in a horizontal circle by means of a string at an initial speed of 5 revolutions per minute. Keeping the radius constant the tension in the string is doubled. The new speed is nearly

A ball of mass 0.1 kg. is whirled in a horizontal circle of radius 1 m. by means of a string at an initial speed of 10 rpm. Keeping the radius constant, the tension in the string is reduced to one quarter of itsinitial value. The new speed is

An object of mass 2 kg is whirled round in a vertical circle of radius lm with a constantspeed of 4 m//s . Then the maximum tension in the string is

A stone of mass1/2kg iswhirled round the end of a piece of string in a horizontal circle of radius half a meter with a uniform speed of 1 m//s . The tension in the string is

One kg mass tied at the end of the string 0.5 m long is whirled in a horizontal circle, the other end of the string being fixed. The breaking tension in the string is 50 N. Find the greatest speed that can be given to the mass.

A body of mass 0.5 kg is whirled in a vertical circle at an angular frequency of 10 rad/s. If the radius of the circle is 0.5 m. What is the tension in the string when the body is at the top of the circle ?

A particle of mass 1 kg is revolved in a horizontal circle of radius 1 m with the help of a string. IF the maximum tension the string can with stand is 16pi^2 N, then the maximum frequency with which the particle can revolve is

A 2 kg stone at the end of a string 1 m long is whirled in a vertical circle at a constant speed. The speed of the stone is 4 m//sec . The tension in the string will be 52 N , when the stone is

A stone tied to the end of a string of length 50 cm is whirled in a horizontal circle with a constant speed . IF the stone makes 40 revolutions in 20 s, then the speed of the stone along the circle is

A particle of mass 2 kg is revolved in a horizontal circle of radius l m with the help of a string. If the maximum tension the string can withstand is 32pi^2 N , then the maximum frequency with which the particle can revolve is

TARGET PUBLICATION-Motion in a plane-Exercise
  1. A string breaks under a load of 4 kg. A mass weighing 200 g is attache...

    Text Solution

    |

  2. A car of mass 1000kg moves on a circular path with constant speed of 1...

    Text Solution

    |

  3. A mass of 10kg is whirled in a horizontal circle by means of a string ...

    Text Solution

    |

  4. Consider a simple pendulam of length 1 m. Its bob performs a circular ...

    Text Solution

    |

  5. The length of the string of a conical pendulam is 10 m and it has a bo...

    Text Solution

    |

  6. In a conical pendulam, when the bob moves in a horizontal circle of ra...

    Text Solution

    |

  7. An automobile travelling with a speed of 60 km h^-1 can apply brakes ...

    Text Solution

    |

  8. The unifom motion in the following acceleration time graph is

    Text Solution

    |

  9. A particle starts from rest at t = 0 and undergoes an acceleration a i...

    Text Solution

    |

  10. A ball is dropped vertically from a height d above the ground. It hits...

    Text Solution

    |

  11. Which of the following is CORRECT graph for variation of distance with...

    Text Solution

    |

  12. An athlete completes one round of a circular track of radius R in 40s....

    Text Solution

    |

  13. The horizontal distance x and the vertical height y of a projectile at...

    Text Solution

    |

  14. A body is projected horizontally from a height with speed 20 metres/se...

    Text Solution

    |

  15. A ball is thrown from rear end of the compartment to the front end whi...

    Text Solution

    |

  16. Time taken by the projectile to reach from A to B in figure is t. Then...

    Text Solution

    |

  17. A stone is projected from the ground with velocity 50 m/s at an angle ...

    Text Solution

    |

  18. A man standing on the roof of a house of height h throws one particle ...

    Text Solution

    |

  19. A ball is rolled off the edge of a horizontal table at a speed of 4 m/...

    Text Solution

    |

  20. A particle comes round a circle of radius Im once. The time taken by i...

    Text Solution

    |