Home
Class 11
PHYSICS
In the pulley arrangement shown in Fig t...

In the pulley arrangement shown in Fig the pulley `p_(2)` is movable .Assuming the coefficient of friction between `m` and surface to be `muu` the minimum value of `M` for which `m` is at rest is

A

`M =(mum)/(2)`

B

`m = (muM)/(2)`

C

`M =(m)/(2mu)`

D

`m=(M)/(2mu)`

Text Solution

Verified by Experts

The correct Answer is:
A
On displacing 'm' through 'x' towards right, 'M' gets displaced downwards by `2x` For equilibrium
`T_(1) =mumg ,T_(1) =2T_(2), T_(2) =Mg` .
Promotional Banner

Topper's Solved these Questions

  • NEWTONS LAWS OF MOTION

    NARAYNA|Exercise NCERT BASED QUESTION|33 Videos

  • NEWTONS LAWS OF MOTION

    NARAYNA|Exercise SINGLE ANSWER QUESTIONS|35 Videos

  • NEWTONS LAWS OF MOTION

    NARAYNA|Exercise LEVEL -II (C.W)|71 Videos

  • MOTION IN A STRAIGHT LINE

    NARAYNA|Exercise Level 2 H.W|29 Videos

  • OSCILLATIONS

    NARAYNA|Exercise EXERCISE - IV|41 Videos

Similar Questions

Explore conceptually related problems

In the pulley arrangement shown in Fig the pulley p_(2) is movable .Assuming the coefficient of friction between m and surface to be mu the minimum value of M for which m is at rest is

In Fig. 7.150 , coefficient of friction between m_(2) and the horizontal surface is mu , minimum value of m so that the system has zero acceleration , is :

When force F applied on m_(2) and there is no friction between m_(1) and surface and the coefficient of friction between m_(1) and m_(2) is mu… What should be the minimum value of F so that there is no relative motion between m_(1) and m_(2)

Two blocks of mass 'm' and 'M, are connect to the ends of a string passing over a pulley. 'M' lies on the plane inclined at an angle theta with the horizontal and 'm' is hanging vertically as shown in Fig. The coefficient of static friction between 'M' and the incline is mu_(s) . Find the minimum and maximum value of 'm' so that the system is at rest.

In the arrangement shown in the figure, the pulley has a mass 3m, Neglecting friction on the contact surface, the force exerted by the supporting rope AB on the ceiling is

In the arrangement shown in figure the cylinder of mass M is at rest on an incline. The string between the cylinder and the pulley (P) is horizontal. Find the minimum coefficient of friction between the incline and the cylinder which can keep the system in equilibrium. Also find the mass of the block. Assume no friction between the pulley (P) and the string.

A block of mass M is placed on a rough horizontal surface. It is connected by means of a light inextensible string passing over a smooth pulley . The other end of string is connected to a block of mass m. There is no friction between vertical surface and block m The minimum value of coefficient of friction mu such that system remains at rest , is

In the system shown in figure the masses of the bodies are known to be m_1 and m_2 , the coefficient of friction between the body m_1 and the horizontal plane is equal to k , and a pulley of mass m is assumed to be a uniform disc. The thread does not slip over the pulley. At the moment t=0 the body m_2 starts descending. Assuming the mass of the thread and the friction in the axle of the pulley to be negligible, find the work performed by the friction forces acting on the body m_1 over the first t seconds after the beginning of motion.

In the arrangement shown in figure, pulley and string are light. Friction coefficient between the two blocks is mu whereas the incline is smooth. Block A has mass m and difference in mass of the two blocks is deltam . Find minimum value of m for which the system will not accelerate when released from rest.

The system is pulled to an elongation A and Then released. Find the minimum value of coefficient of friction between m and M for which m doesn't slips over M.

NARAYNA-NEWTONS LAWS OF MOTION-LEVEL -III
  1. A block of mass m = 4 kg is placed over a rough inclined plane as show...

    Text Solution

    |

  2. A block of mass m slides down an inclined plane of inclination theta w...

    Text Solution

    |

  3. In the pulley arrangement shown in Fig the pulley p(2) is movable .Ass...

    Text Solution

    |

  4. On an inclined plane of inclination angle 30^(@), a block is placed. I...

    Text Solution

    |

  5. A body slides over an inclined plane of forming an angle of 45^(@) wit...

    Text Solution

    |

  6. A system is pushed by a force F as shown in figure All surfaces are sm...

    Text Solution

    |

  7. Two blocks A and B are separated by some distance and tied by a string...

    Text Solution

    |

  8. Coefficient of friction between two block shown in figure is mu = 0.4....

    Text Solution

    |

  9. Coefficient of friction between two block shown in figure is mu = 0.4....

    Text Solution

    |

  10. Coefficient of friction between two block shown in figure is mu = 0.4....

    Text Solution

    |

  11. A 2 kg block is pressed against a rough wall by a force F = 20 N as sh...

    Text Solution

    |

  12. Three blocks are kept as shown in figure Acceleration of 20 kg block w...

    Text Solution

    |

  13. A suitcase is gently dropped on a conveyor belt moving at 3ms^(-1) If ...

    Text Solution

    |

  14. Two block A and B of masses 6 kg and 3 kg rest on a smooth horizontal...

    Text Solution

    |

  15. Find the least horizontal force P to start motion of any part of the s...

    Text Solution

    |

  16. Determine the time in which the smaller block reaches other end of big...

    Text Solution

    |

  17. A block of weight W is kept on a rough horizontal surface (friction co...

    Text Solution

    |

  18. A 2 kg block is placed over a 4 kg block and both are placed on a smoo...

    Text Solution

    |

  19. Blocks A and B shown in the figure are connected with a bar of negligi...

    Text Solution

    |

  20. Block A and B shown in the figure are connected with a bar of negligib...

    Text Solution

    |