Home
Class 12
PHYSICS
The figure shown blocks A and B are mass...

The figure shown blocks A and B are mass 2 kg and 8 kg and they are connected through strings to a spring connected to ground. The blocks are in equilbrium. `(g=10m//s^(2))`

Now the block A is pulled downwards by a force gradually increasing to 20 N. The new elongation of spring is ,-

A

2 cm

B

4 cm

C

20 cm

D

40 cm

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • NEWTON'S LAWS OF MOTION & FRICTION

    ALLEN|Exercise EXERCISE (O-2)|31 Videos

  • NEWTON'S LAWS OF MOTION & FRICTION

    ALLEN|Exercise EXERCISE (JM)|6 Videos

  • NEWTON'S LAWS OF MOTION & FRICTION

    ALLEN|Exercise EXERCISE (S-2)|9 Videos

  • MOTION IN A PALNE

    ALLEN|Exercise SOLVED EXAMPLE|28 Videos

  • NEWTONS LAWS OF MOTION

    ALLEN|Exercise EXERCISE-III|28 Videos

Similar Questions

Explore conceptually related problems

The figure shown blocks A and B are mass 2 kg and 8 kg and they are connected through strings to a spring connected to ground. The blocks are in equilbrium. (g=10m//s^(2)) The elongation of the spring is

Two blocks of masses of 40 kg and 30 kg are connected by a weightless string passing over a frictionless pulley as shown in the figure.

Two block A and B of mass M & 3M are connected through a light string. One end of the string is connected to the blcok B and its other end is connected to a fixed point S as shown in fig. Now a force F is applied to block B. find the acceleration of block A & B.

In figure shown if 2 kg block is moving at an acceleration 2 m//s^(2) , find the elongationin spring and acceleration of 4 kg block at this instant. Take g= 10m//s^(2) .

Two blocks A and B of mass 16kg and 64kg are placed on a smooth horizontal surface. Blocks are connected by a spring of spring constant 100 N//m . Find the ratio of maximum speed of block A to maximum speed of block B .

Two block of mass 1 kg and 2 kg are connected by a string AB of mass 1 kg . The blocks are placed on a smooth horizontal surface. Block of mass 1 kg is pulled by a horizontal force F of magnitude 8 N . Find the tension in the string at points A and B

Two blocks A and B of masses 5 kg and 2 kg respectively connected by a spring of force constant = 100Nm^(-1) are placed on an inclined plane of inclined 30^(@) as shown in figure If the system is released from rest

Two blocks of masses m_1 and m_2 are connected by a spring of spring constant k figure. The block of mass m_2 is given a shape impulse so that it acquires a velocity v_0 towards right. Find a. the velocity of the centre of mass b. the maximum elongation that the spring will suffer.

Two blocks of masses 2 kg and 4 kg are connected by a massles string which is just taut. Now two forces 3 N and 14 N are applied on blocks. The tension in the string is

A block of mass m, lying on a smooth horizontal surface, is attached to a spring (of negligible mass) of spring constant k. The other end of the spring is fixed, as shown in the figure. The block is initally at rest in its equilibrium position. If now the block is pulled withe a constant force F, the maximum speed of the block is :

ALLEN-NEWTON'S LAWS OF MOTION & FRICTION-EXERCISE (O-1)
  1. A system is pushed by a force F as shown in figure All surfaces are sm...

    Text Solution

    |

  2. Refer the system shown in the figure. Block is siding down the wedge. ...

    Text Solution

    |

  3. A block of mass 1 kg is held at rest against a rough vertical surface ...

    Text Solution

    |

  4. A block is kept on a rough horizontal surface as shown. Its mass is 2 ...

    Text Solution

    |

  5. The mass in the figure can slide on a frictionless surface. When the m...

    Text Solution

    |

  6. A carpenter of mass 50 kg is standing on a weighing machine placed in ...

    Text Solution

    |

  7. In the system in the figure m(1)gtm(2) system is held at rest by threa...

    Text Solution

    |

  8. A uniform rope of mass (m) and length (L) placed on frictionless horiz...

    Text Solution

    |

  9. A uniform rope of mass (m) and length (L) placed on frictionless horiz...

    Text Solution

    |

  10. A uniform rope of mass (m) and length (L) placed on frictionless horiz...

    Text Solution

    |

  11. Ratio of amplitude for two wave is 1:5 .Find the ratio of maximum ampl...

    Text Solution

    |

  12. The figure shown blocks A and B are mass 2 kg and 8 kg and they are co...

    Text Solution

    |

  13. The figure shown blocks A and B are mass 2 kg and 8 kg and they are co...

    Text Solution

    |

  14. Ratio of amplitude for two wave is 1:5.Find the ratio of maximum Inten...

    Text Solution

    |

  15. The blocks are on frictionless inclined ramp and connected by a massle...

    Text Solution

    |

  16. The blocks are on frictionless inclined ramp and connected by a massle...

    Text Solution

    |

  17. The blocks are on frictionless inclined ramp and connected by a massle...

    Text Solution

    |

  18. In the diamram shown in figure , match the following (g=10m//s^(2)) ...

    Text Solution

    |

  19. Match the situations in column I to the accelerations of blocks in the...

    Text Solution

    |

  20. A sphere of mass 10 kg is placed in equibrium in a V shaped groove pla...

    Text Solution

    |