Home
Class 11
PHYSICS
A body of mass m = 0 kg is attached to a...

A body of mass m = 0 kg is attached to a wire of length 0.3 m. Calculate the maximum angular velcoity with wicch it can be rotated in a horizontal circle (Breaking stress of wire `= 4.8 x 10^(7)N//m^(2)` and area of cross-section of wire = `10^(-6)m^(2)`)

A

`4 rad//s`

B

`8 rad//s`

C

`1 rad//s`

D

`2 rad//s`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Mechanical Properties of Solids

    SL ARORA|Exercise Example|113 Videos

  • Mechanical Properties of fluids

    SL ARORA|Exercise Exercise|459 Videos

  • MECHANICS

    SL ARORA|Exercise Exercise|341 Videos

Similar Questions

Explore conceptually related problems

A body of mass m = 10 kg is attached to a wire of length 0.3m. The maximum angular velocity with which it can be rotated in a horizontal circle is (Given, breaking stress of wire = 4.8 xx 10^(7) Nm^(-2) and area of cross-section of a wire = 10^(-2) m^(2) )

A body of mass 10 kg is attached to a wire 0.3 m long. Its breaking stress is 4.8xx10^(7)N//m^(2). The area of cross-section of wire is 10^(-6)m^(2). What is the maximum angular velocity with which it can be rotated in a horizontal circle?

A bob of mass 10 kg is attached to wire 0.3 m long. Its breaking stress is 4.8 xx 10^(7) N//m^(2) . The area of cross section of the wire is 10^(-6) m^(2) . The maximum angular velocity with which it can be rotated in a horizontal circle

A bob of mass 10 kg is attached to a wire 0.3 m long. Its breaking stress is 4.8xx10^(7) N//m^(2) . Then area of cross-section of the wire is 10^(-6) m^(2) . What is the maximum angular velocity with which it can be rotated in a horizontal circle?

A small but heavy block of mass 10 kg is attached to a wire 0.3 m long. Its breaking stress is 4.8 xx 10^(7) N//m^(2) . The area of the cross section of the wire is 10^(-6) m^(2) . The maximum angular velocity with which the block can be rotated in the horizontal circle is

A body of mass 1 kg is attached to one end of a wire and rotated in a horizontal circle of diameter 40 cm with a constant speed of 2m/s. What is the area of cross-section of the wire if the stress developed in the wire is 5 xx 10^(6) N//m^(2) ?

A copper wire of negligible mass, 1 m length and cross-sectional area 10^(6) m^(2) is kept on a smooth horizontal table with one end fixed. A ball of mass 1 kg is attached to the other end. The wire and the ball are rotating with an angular velocity of 20 rad//s . If the elongation in the wire is 10^(-3) m . a. Find the Young's modulus of the wire (in terms of xx 10^(11) N//m^(2) ). b. If for the same wire as stated above, the angular velocity is increased to 100 rad//s and the wire breaks down, find the breaking stress (in terms of xx 10^(10) N//m^(2) ).

A body of mass 1 kg is fastened to one end of a steel wire of cross- section area 3 xx 10^(-6)m^(2) and is rotated in horizantal circle of radius 20 cm with a constant speed 2 m//s . Find the elongation of the wire (Y= 2 xx 10^(11) N//m^(2))

Calculate the conductance and conductivity of a wire of radius 0.01 Omega area of cross -section 10^(-4)m^(2) length 0.1m

SL ARORA-Mechanical Properties of Solids-Example
  1. A body of mass m = 0 kg is attached to a wire of length 0.3 m. Calcula...

    Text Solution

    |

  2. The length of a suspended loire increases by 10^-4 of its original len...

    Text Solution

    |

  3. A uniform wire of steel of length 2.5m and density 8.0gcm^(-3) weighs ...

    Text Solution

    |

  4. A structural steel rod has a radius of 10 mm and a length of 1.0 m. A ...

    Text Solution

    |

  5. A structural steel rod has a radius of 10 mm and a length of 1.0 m. A ...

    Text Solution

    |

  6. A structural steel rod has a radius of 10 mm and a length of 1.0 m. A ...

    Text Solution

    |

  7. What is the percentage increase in length of a wire of diameter 2.5 mm...

    Text Solution

    |

  8. The breaking stress for a metal is 7.8 xx 10^9 Nm^-2. Calculate the ma...

    Text Solution

    |

  9. A rubber string 10m long is suspended from a rigid support at its one ...

    Text Solution

    |

  10. A silica glass rod has a diameter of1cmand is 10 cmlong. The ultimate ...

    Text Solution

    |

  11. A composite wire of uniform diameter 3.0 mm consisting of a copper wir...

    Text Solution

    |

  12. The maximum stress that can be applied to the material of a wire used ...

    Text Solution

    |

  13. A mass of 100 grams is attached to the end of a rubber string 49 cm. l...

    Text Solution

    |

  14. A uniform heavy rod of weight W, cross sectional area a and length L i...

    Text Solution

    |

  15. A steel wire of uniform cross-section 1 mm^(2) is heated to 70^(@)C an...

    Text Solution

    |

  16. The presssure of a medium is changed from 1.01xx10^(5) Pa to 1.165xx...

    Text Solution

    |

  17. The average depth of indian Ocean is about 3000 m. The fractional comp...

    Text Solution

    |

  18. A sphere contracts in volume by 0.01% when taken to the bottom of sea ...

    Text Solution

    |

  19. If the normal density of sea water is 1.00 g//cm^(3), what will be its...

    Text Solution

    |

  20. A cube is subjected to pressure of 5 xx 10^(5)N//m^(2). Each side of t...

    Text Solution

    |

  21. Calculate the presure required to stop the increases in volume of a co...

    Text Solution

    |