Home
Class 12
PHYSICS
A weight mg is suspended from the middle...

A weight mg is suspended from the middle of a rope whose ends are at the same level. The rope is no longer horizontal. Find the minimum tenstion required to completely straighten the rope.

A

`(Mg)/(2)`

B

`Mg costheta`

C

`2Mg cos theta`

D

Infinitely large

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • LAWS OF MOTION

    AAKASH INSTITUTE|Exercise Assignment (SECTION-B)|44 Videos

  • LAWS OF MOTION

    AAKASH INSTITUTE|Exercise Assignment (SECTION-C)|63 Videos

  • LAWS OF MOTION

    AAKASH INSTITUTE|Exercise EXERCISE|70 Videos

  • KINETIC THEORY

    AAKASH INSTITUTE|Exercise EXERCISE (ASSIGNMENT) SECTION - D Assertion - Reason Type Questions|10 Videos

  • MAGNETISM AND MATTER

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION D)|26 Videos

Similar Questions

Explore conceptually related problems

A weight w is suspended from the midpoint of a rope, whose ends are at the same level. In order to make the rope perfectly horizontal, the force applied to each of its ends must be

Two persons are holding a rope of negligible weight tightly at its ends so that is horizontal. A 15kg weight is attached to the mid point which how no longer remains horizontal. The minimum tension required to completely straighten the rope is:

A weight w is sasponded from the mid -point of a tope whose ends are at the same level In after in make the rope perfectly horizontalthe force applied to each of its ends must be

Two persons are holding a rope of negligible weight tightly at its ends so that it is horizontal. A 15kg weight is attached to rope at the midpoint which now no more remains horizontal The minimum tension required to completely straighten the rope is .

Two persons are holding a rope of negligible mass horizontally. A 20 kg mass is attached to the rope at the midpoint, as a result the rope deviates from the horizontal direction. The tension required to completely straighten the rope is (g=10m//s^(2))

A heavy rope is suspended from a rigid support A wave pulse is set up at the lower end, then

In a tug of war, three men pull on a rope to the left at A and three men pull to the right at B with forces of equal magnitude. Then a 5 lb weight is hung from the centre of the rope.'(a) Can the men get the rope AB to be horizontal ? (b)If not, explain. If so, determine the magnitudes of the forces at A and B required to do this.

A heavy rope is suspended from the ceiling of a room. If phi is the density of the rope, L be its original length and Y be its. Young's modulus, then increase DeltaL in the length of the rope due to its own weight is

AAKASH INSTITUTE-LAWS OF MOTION-Assignment (SECTION-A)
  1. A block of mass m is placed on a smooth inclined plane of inclination ...

    Text Solution

    |

  2. In which of the following graphs, the total change in momentum is zero...

    Text Solution

    |

  3. A weight mg is suspended from the middle of a rope whose ends are at t...

    Text Solution

    |

  4. The masses of 10 kg and 20 kg respectively are connected by a massless...

    Text Solution

    |

  5. Tension in the rope at the rigid support is (g=10m//s^(2))

    Text Solution

    |

  6. Two bodies of masses m(1) " and " m(2) are connected a light string wh...

    Text Solution

    |

  7. In the figure given below, with what acceleration does the block of ma...

    Text Solution

    |

  8. T(1) and T(2) in the given figure are

    Text Solution

    |

  9. In the arrangement shown, the mass m will ascend with an acceleration ...

    Text Solution

    |

  10. A chain of mass M and length L is held vertical by fixing its upper en...

    Text Solution

    |

  11. A man slides down a light rope whose breaking strength in eta times hi...

    Text Solution

    |

  12. In the arrangement as shown, tension T(2) is (g=10m//s^(2))

    Text Solution

    |

  13. If pulleys shown in the diagram are smooth and massless and a(1) and a...

    Text Solution

    |

  14. Figure shows a uniform rod of length 30 cm having a mass 3.0 kg. The ...

    Text Solution

    |

  15. Mr. A, B and C are trying to put a heavy piston into a cylinder at a m...

    Text Solution

    |

  16. In a rocket, fuel burns at the rate of 2 kg/s. This fuel gets ejected ...

    Text Solution

    |

  17. A machine gun fires a bullet of mass 65 g with a velocity of 1300 m/s....

    Text Solution

    |

  18. A bullet of mass 40g is fired from a gun of mass 10 kg. If velocity of...

    Text Solution

    |

  19. A diwali rocket is ejecting 0.05kg of gases per second at a velocity o...

    Text Solution

    |

  20. A rocket of mass 5700 kg ejects mass at a constant rate of 15 kg/s w...

    Text Solution

    |