Home
Class 12
PHYSICS
Two masses each equal to m are lying on ...

Two masses each equal to m are lying on x-axis at `(-a,0)(+a,0)` respectively as shown in figure They are connected by a light string A force F is applied at the origin along vertical direction As a result the masses move toward each other without loosing contact with ground What is the acceleration of each mass? Assume the instantanceous position of the masses as`(-x,0)`and `(x,0)`

A

`F/m (x)/(sqrt(a^2 - x^2))`

B

`F/(2m) x/(sqrt(a^2 - x^2))`

C

`(2F)/(m) (x)/(sqrt(a^2 - x^2))`

D

`(2F)/(m) (sqrt(a^2 - x^2))/(x)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • APPENDICES (REVISION EXERCISE)

    AAKASH SERIES|Exercise MOTION IN A PLANE|87 Videos

  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (MAGNETISM AND MATTER )|52 Videos

  • ATOMS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|21 Videos

Similar Questions

Explore conceptually related problems

Two masses m_1 and m_2 are placed on a smooth horizontal surface and are connected by a string of negligible mass. A horizontal force F is applied on the mass m_2 as shown in the figure. The tension in the string is

Two particles of mass m each are tied at the ends of a light string of length 2a. The whole system is kept on a frictionless horizontal surface with the string held tight so that each mass is at a distance a from the centre P (as shown in the figure). Now, the mid-point of the string is pulled vertically upwards with a small but constant force F. As a result, the particles move towards each other on the surface. The magnitude of acceleration, when the separation between them becomes 2x, is

Two particles of mass m each are tied at the ends of a light string of length 2a. The whole system is kept on a frictionless horizontal surface with the string held tight so that each mass is at a distance a from the centre P (as shown in the figure). Now, the mid-point of the string is pulled vertically upwards with a small but constant force F. As a result, the particles move towards each other on the surface. The magnitude of acceleration, when the separation between them becomes 2x, is

Three blocks with masses m , 2m and 3m are connected by strings, as shown in the figure. After an upward force F is applied on block m , the masses move upward at costant speed v . What is the net force on the block of mass 2m ? ( g is the acceleration due to gravity). ltBrgt

Three blocks with masses m , 2m and 3m are connected by strings, as shown in the figure. After an upward force F is applied on block m , the masses move upward at costant speed v . What is the net force on the block of mass 2m ? ( g is the acceleration due to gravity). ltBrgt

A rod of mass m and length l is hinged at one of its ends A as shown in figure. A force F is applied at a distance x from A . The acceleration of centre of mass varies with x as -

A rod of mass m and length l is hinged at one of its ends A as shown in figure. A force F is applied at a distance x from A . The acceleration of centre of mass varies with x as -

Two masses 10 kg and 20 kg respectively are connected by a massless spring as shown in figure force of 200 N acts on the 20 kg mass. At the instant shown is figure the 10 kg mass has acceleration of 12m//s^(2) what is the acceleration of 20 kg mass?

Two blocks of masses M and 2M are connected to each other through a light spring as shown in figure . If we push the mass M with a force F which cause acceleration a in mass M. what will the acceleration in 2M?

Two charges, each equal to q, aer kept at x=-a and x=a on the x-axis. A particle of mass m and charge q_0=q/2 is placed at the origin. If charge q_0 is given a small displacement (ylt lt a) along the y-axis, the net force acting on the particle is proportional to

AAKASH SERIES-APPENDICES (REVISION EXERCISE)-LAW OF MOTION
  1. Five persons A, B, C, D & E are pulling a cart of mass 100kg on a smoo...

    Text Solution

    |

  2. A box is put on a scale which is adjusted to read zero, when the box i...

    Text Solution

    |

  3. Two masses each equal to m are lying on x-axis at (-a,0)(+a,0) respect...

    Text Solution

    |

  4. Water is flowing at a speed of 1.5ms^(-1) through a horizontal tube of...

    Text Solution

    |

  5. A unidirectional force F varying with time t as shown in the figure a...

    Text Solution

    |

  6. A U-shaped smooth wire has a semi-circular bending between A and B as ...

    Text Solution

    |

  7. Two particles of mases m(1) and m(2) in projectile motion have velocit...

    Text Solution

    |

  8. A bomb falling freely bursts after 10 sec. (g=10ms^2) into two fragmen...

    Text Solution

    |

  9. An object initially at rest explodes into three equal fragments A, B a...

    Text Solution

    |

  10. A shell of mass m is fired from a cannon at angle q to horizontal with...

    Text Solution

    |

  11. A 500kg boat has an initial speed of 10 ms^(-1) as it passes under a ...

    Text Solution

    |

  12. A railway flat car, whose mass together with the artillery gun is M, m...

    Text Solution

    |

  13. A machine gun is mounted on a 200kg vehicle on a horizontal smooth roa...

    Text Solution

    |

  14. A gun of mass M fires a bullet of mass m, with a Kinetic energy E. The...

    Text Solution

    |

  15. A gun of mass M. fires a shell of mass m horizontally and the energy o...

    Text Solution

    |

  16. Two spacemen A and B are floating is gravity free space with zero velo...

    Text Solution

    |

  17. The first & second stage of two stage rocket separately weigh 100 kg a...

    Text Solution

    |

  18. A projectile of mass M is fired so that the horizontal range is 4 km. ...

    Text Solution

    |

  19. There are four forces ,acting at a point P produced by strings as show...

    Text Solution

    |

  20. If 'O' is at equilibrium then the values of the tension T(1) and T2 re...

    Text Solution

    |