Home
Class 12
PHYSICS
The figure shows two creates that are co...

The figure shows two creates that are connected by a steel wire that passes over a pulley. The unstretched length of the wire is 1.5 m, and its cross - sectional area is `1.3xx10^(-5)m^(2)`. The pulley is frictionless and massless. When the crates are accelerating, determine the change in length of the wire. Ignore the mass of the wire.

A

`4.3xx10^(-5)m`

B

`3.2xx10^(-5)m`

C

`2.1xx10^(-5)m`

D

`2.5xx10^(-6)m`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELASTICITY

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (More than One Correct Choice Type)|8 Videos
  • ELASTICITY

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (Linked Comprehension)|6 Videos
  • ELASTICITY

    RESNICK AND HALLIDAY|Exercise CHECKPOINT|1 Videos
  • CURRENT AND RESISTANCE

    RESNICK AND HALLIDAY|Exercise Practice Questions (Integer Type)|3 Videos
  • ELECTRIC CHARGES AND FIELDS

    RESNICK AND HALLIDAY|Exercise Practice Questions (Integer Type )|3 Videos

Similar Questions

Explore conceptually related problems

In CGS system, the Young's modulusm of a steel wire is 2 xx 10^(12) . To double the length of a wire of unit cross-section area, the force

Two particles of masses m and M(Mgtm) are connected by a cord that passes over a massless, frictionless pulley. The tension T in the string and the acceleration a of the particles is

A current of 3 A is flowing through a wire of length 2 m and cross- sectional area 1mm^(2) . If wire contains 10^(29) "electrons"//m^(3) , calculate the average time taken by an electron to cross the length of the wire.

The Young's modulus of a wire of length 2m and area of cross section 1 mm^(2) is 2 xx 10^(11) N//m^(2) . The work done in increasing its length by 2mm is

Calculate the force required to increase the length of a steel wire of cross- sectional area 10^(-6)m^(2) by 0.5% given: Y_(("for steel"))=2xx10^(11)N-m^(2)

When a resistance wire is passed through a die the cross-section area decreases by 1% , the change in resistance of the wire is

Two blocks of masses m and 2m are connected through a wire fo breakig stress S passing over a frictionless pulley. The maximum radius of the wire to be used so that the wire may not break is

Two block of mass m and M are connected means of a metal of a metal wire passing over a frictionless fixed pulley. The area of cross section of the wire is 6.67xx10^(-9)m^(2) and its breaking stress is 2xx10^(9)Nm^(-2) . If m = 1kg. Find the maximum value of M in kg for which the wire will not break. (g=10m//s^(2)) .

RESNICK AND HALLIDAY-ELASTICITY-PRACTICE QUESTIONS
  1. A cylinder with a diameter of 0.240 m is placed between the plates of ...

    Text Solution

    |

  2. A wire elongates by l mm when a load W is hanged from it. It the wire ...

    Text Solution

    |

  3. A cable stretched by an amount d when it supports a crate of mass M. T...

    Text Solution

    |

  4. A uniform rod of length L is free to rotate in a vertical plane about ...

    Text Solution

    |

  5. A wooden wheel of radius R is made of two semicircular part . The two ...

    Text Solution

    |

  6. A tow truck is pulling a car out of a ditch by means of steel cable th...

    Text Solution

    |

  7. A rubber cube of side 5 cm has one side fixed while a tangential force...

    Text Solution

    |

  8. A steel wire of length 20 cm and cross - section 1 mm^(2) is tied rigi...

    Text Solution

    |

  9. When subjected to a force of compression, the length of a bone decreas...

    Text Solution

    |

  10. A uniform rod of mass m. length L, area of cross- secticn A is rotated...

    Text Solution

    |

  11. Between each pair of vertebrae in the spinal column is a cylindrical d...

    Text Solution

    |

  12. The figure shows two creates that are connected by a steel wire that p...

    Text Solution

    |

  13. The brick shown in the figure is glued to the floor. A 3500 N force is...

    Text Solution

    |

  14. A spring with constant k = 78 N/m is at the base of a frictionless, 30...

    Text Solution

    |

  15. The maximum compressional stress that a bone can withstand is 1.6xx10^...

    Text Solution

    |

  16. The shear modulus of steel is 8.1xx10^(10)N//m^(2). A steel nail of ra...

    Text Solution

    |

  17. A gymnast does a one - arm handstand. The humerus, which is the upper ...

    Text Solution

    |

  18. A solid brass sphere is subjected to a pressure of 1.0xx10^(5) Pa due ...

    Text Solution

    |

  19. A cylindrically shaped piece of collagen (a substance found in the bod...

    Text Solution

    |

  20. One end of a piano wire is wrapped around a cylindrical tuing peg and ...

    Text Solution

    |