Home
Class 12
PHYSICS
Two blocks of mass 1 kg & 2 kg are hange...

Two blocks of mass 1 kg & 2 kg are hanged from a light pulley and resting on a horizontal surface. A time varying force F = 4t N is acting on pulley in the direction shown . Time after which block will break off the surface will be -

A

5

B

10

C

15

D

20

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 36

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos
  • NTA NEET SET 38

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

Two blocks of masses 4 kg and 6 kg are kept on a rough horizontal surface as shown. If the acceleration of 6 kg block is 5n , then n is :

Two blocks of masses 1 kg and 2 kg are placed in contact on a smooth horizontal surface as shown in fig. A horizontal force of 6N is applied d(a) on a 1-kg block. Find the force of interaction of the blocks. .

Two blocks of mass 2 kg and 4 kg are accelerated with same acceleration by a force 10 N as shown in figure on a smooth horizontal surface. Then the spring force between the two blocks will be (spring is massless)

Two blocks of masses 10 kg and 20 kg are connected by a massless string and are placed on a smooth horizontal surface as shown in the figure. If a force F=600 N is applied to 10 kg block, then the tension in the string is

Two blocks of masses 4kg and 2kg are placed side on a smooth horizontal surface as shown in the figure. A horizontal force of 20N is applied on 4kg block. Find (a) the acceleration of each block. (b) the normal reaction between two blocks.

Two blocks of masses of 0.2 kg and 0.5 kg which are placed 22m apart on a horizontal surface (mu = 0.5) are acted uponby two forces of magnitude 3 N each as shown in figure in time t = 0 Then the time t at which they collide with each other is

A block of mass 2 kg is plased on a smooth horizontal surface. Two forces F_(1)=20 N and F_(2)=5 N start acting on the block in opposite directions as shown. If block gets displaced by 5 m in the direction of net force then work done by F_(2) is :-

A block of mass 5 kg is initially at rest on a rough horizontal surface. A force of 45 N acts over a distance of 2 m . The force of friction acting on the block is 25 N . The final kinetic energy of the block is

Two blocks A and B , each of mass 10 kg , are connected by a light string passing over a smooth pulley as shown in the figure. Block A will remain at rest if the friction on it is

NTA MOCK TESTS-NTA NEET SET 37-PHYSICS
  1. A current i ampere flows in a circular arc of wire whose radius is R, ...

    Text Solution

    |

  2. At time t, the position of a body moving along the x - axis is x=t^3-6...

    Text Solution

    |

  3. Two blocks of mass 1 kg & 2 kg are hanged from a light pulley and rest...

    Text Solution

    |

  4. In order to raise a mass of 100 kg, a man of mass 60 kg fastens a rop...

    Text Solution

    |

  5. A man is running on the ground .It is known that the coefficient of fr...

    Text Solution

    |

  6. The radioactive decay of uranium into thorium is represented by the eq...

    Text Solution

    |

  7. A nucleus with mass number 220 initially at rest emits an alpha-partic...

    Text Solution

    |

  8. A pendulum with time period of 1s is losing energy due to damping. At ...

    Text Solution

    |

  9. A uniform spring whose unstretched length is l has a force constant k....

    Text Solution

    |

  10. When the voltage applied to an X-ray tube increased from V(1)=15.5kV t...

    Text Solution

    |

  11. What is de-Broglie wavelength of the electron accelerated through a po...

    Text Solution

    |

  12. A metal wire of length L, area of cross-section A and young's modulus ...

    Text Solution

    |

  13. Two wires of the same material and length but diameters in the ratio 1...

    Text Solution

    |

  14. Two plane mirrors are inclined at an angle theta to one another. A r...

    Text Solution

    |

  15. A biconvex lens of focal length 40 cm is placed in front of an object ...

    Text Solution

    |

  16. A uniform solid sphere of mass m, radius R moving with velocity v0 is...

    Text Solution

    |

  17. Wheel A of radius r(A)=10cm is coupled by a belt C to another wheel of...

    Text Solution

    |

  18. If in a p - n junction diode , a square input signal of 10 V is applie...

    Text Solution

    |

  19. In the following common emitter circuit , if beta = 100 , V(CE)=7 V , ...

    Text Solution

    |

  20. Two idential container joined by a small pipe initially contain the sa...

    Text Solution

    |