Home
Class 12
PHYSICS
A system consists of t wo identical mass...

A system consists of t wo identical masses A and B of mass m each connected to ends of a massless spring of force constant k as shown in figure.

The minimum force F applied vertically downward on A, such that on its release, B will leave the floor.

A

mg

B

2mg

C

3mg

D

4mg

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • WORK, ENERGY AND POWER

    AAKASH INSTITUTE|Exercise SECTION-C (OBJECTIVE TYPE QUESTIONS) (MORE THAN ONE OPTIONS ARE CORRECT)|16 Videos

  • WORK, ENERGY AND POWER

    AAKASH INSTITUTE|Exercise SECTION-D (LINKED COMPREHENSION TYPE QUESTIONS) (COMPREHENSION-I)|3 Videos

  • WORK, ENERGY AND POWER

    AAKASH INSTITUTE|Exercise SECTION-A (OBJECTIVE TYPE QUESTIONS (ONE OPTIONISCORRECT)|60 Videos

  • WAVES

    AAKASH INSTITUTE|Exercise ASSIGNMENT ( SECTION-D ( Assertion - Reason Type Questions ))|12 Videos

Similar Questions

Explore conceptually related problems

A block of mass m held touching the upper end of a light spring of force constant K as shown in figure. Find the maximum potential energy stored in the spring if the block is released suddenly on the spring.

Four blocks each of mass M connected by a massless strings are pulled by a force F on a smooth horizontal surface, as shown in figure.

Two masses A and B, each of mass M are fixed together by a massless spring. A force acts on the mass B as shown in figure. If the mass A starts moving away from mass B with acceleration 'a', then the acceleration of mass B wil be :-

Two identical blocks, each of mass m, are connected through a massless spring of force constant k and arranged as shown in fig the spring is compressed by an amount y by applying an external force and released (a) What is the velocity of upper block when the spring is relaxed (b) What should be the initial compression of the spring so that the lower block is just raised above the floor ?

A block of mass m is connected to another .block of mass M by a massless spring of spring constant k. A constant force f starts action as shown in figure, then:

Two bodies A and B each of mass M are fixed together by a massless spring A force F acts on the mass B as shown in fig At the instant shown the mass A has acceleration a. What is the acceleration of mass B?

A body of mass 'm' is suspended to an ideal spring of force constant 'k'. The expected change in the position of the body due to an additional force 'F' acting vertically downwards is

Two blocks A and B of mass 2m and m respectively are connected to a massless spring of force constant K as shown in figure A and B are moving on the horizontal frcitionless surface with velocity v to right with underformed spring. If B collides with C elastically, then maximum compression of the spring will be

AAKASH INSTITUTE-WORK, ENERGY AND POWER-SECTION-B (SUBJECTIVE TYPE QUESTIONS) (ONE OPTIONS IS CORRECT)
  1. A uniform chain of mass 4 kg and legth 2 m overhags a smooth table wit...

    Text Solution

    |

  2. A particle of mass m, attached to the end of string of length l is rel...

    Text Solution

    |

  3. A system consists of t wo identical masses A and B of mass m each conn...

    Text Solution

    |

  4. A car starts from rest and moves on a surface in which the coefficient...

    Text Solution

    |

  5. A particle falls from rest under gravity. Its potential energy with re...

    Text Solution

    |

  6. A particle of mass m is moving in a horizontal circle of radius r, und...

    Text Solution

    |

  7. A particle is placed on the top of a hemispherical shell of same mass....

    Text Solution

    |

  8. A bob is tied up with a string AB of length l. End A of the string is ...

    Text Solution

    |

  9. If linear momentum if increased by 50% then kinetic energy will be inc...

    Text Solution

    |

  10. A body of mass m was slowly pulled up the hill by a force F which at e...

    Text Solution

    |

  11. Work done by a spning force is

    Text Solution

    |

  12. A small body of mass m slides without friction from the top of a hemi...

    Text Solution

    |

  13. A motor drives a body along a straight line with a constant force. The...

    Text Solution

    |

  14. An engine pumps water continously through a hole. Peeds with which wat...

    Text Solution

    |

  15. A machine which is 75% efficient uses 12 J of energy in lifting up a 2...

    Text Solution

    |

  16. A bullet when fixed at a target with a velocity of 100 ms^(-1), penetr...

    Text Solution

    |

  17. A particle is rotated in a vertical circle by connecting it to a strin...

    Text Solution

    |

  18. The block of mass m is released when the spring was in its natrual len...

    Text Solution

    |

  19. Consider the spring blcok system shoen in the figure initially block m...

    Text Solution

    |

  20. Consider the spring block system shown in the figure. Initially block ...

    Text Solution

    |