Home
Class 12
PHYSICS
The pulley arrangements shown in figure ...

The pulley arrangements shown in figure are identical, the mass of the rope being negligible. In case I the mass m is lifted by attaching a mass `2m` to the other end of rope with a constant downward force `F =2mg`, where g is acceleration due to gravity The acceleration of mass m in case I is
.

A

Zero

B

More than that in case (b)

C

Less than that in case (b)

D

Equal to that in case (b)

Text Solution

Verified by Experts

The correct Answer is:
C
In case (b) entire tension =2mg, hence acceleration is more.
Promotional Banner

Topper's Solved these Questions

  • NEWTONS LAWS OF MOTION

    ALLEN|Exercise EXERCISE-III|28 Videos

  • NEWTONS LAWS OF MOTION

    ALLEN|Exercise EXERCISE-I|52 Videos

  • NEWTON'S LAWS OF MOTION & FRICTION

    ALLEN|Exercise EXERCISE (JA)|4 Videos

  • RACE

    ALLEN|Exercise Basic Maths (Wave Motion & Dopplers Effect) (Stationary waves & doppler effect, beats)|24 Videos

Similar Questions

Explore conceptually related problems

The pulley arrangements of Figs. (a) and (b) are identical. The mass of the rope is negligible. In (a) the mass m is lifted up by attaching a mass 2m to the other end of the rope. In (b), m is lifted up by pulling the other end of the rope with a constant downward force F=2mg . The acceleration of m is the same in both cases

The pulley arrangement in Fig are identical .The mass of the rope is negligble in figure the mass m is lifted up by atteched a mass 2m to the other end of the rope . In (b), m is lifed up by pulley the other end of the rope with a constant in both cases

Figure shown two pulley arrangments for lifting a mass m . In case-1, the mass is lifting by attaching a mass 2m while in case-2 the mass is lifted by pulling the other end with a downward force F=2mg . If a_(a) and a_(b) are the accelerations of the two masses then (Assumme string is massless and pulley is ideal).

In the shown mass pulley system, pulleys and string are massless. The one end of the string is pulleed by the force F=2mg . The acceleration of the block will be

In the shown mass pulley system, pulleys and string are massless. The one end of the string is pulleed by the force F=2mg . The acceleration of the block will be

Two masses m and m' are tied with a thread passing over a pulley, m' is on a frictionless horizontal surface and m is hanging freely. If acceleration due to gravity is g, the acceleration of m' in this arrangment will be :

In the fig. given masses m and m' are tied with a tread passing over a pulley, m' is on a frictionless horizontal surface. If acceleration due to gravity is g, the acceleration of m' in this arrangement will be:-

A pulley-rope-mass arrangement is shown in fig. Find the acceleration of block m_(1) when the masses are set free to move. Assume that the pulley and the ropes are ideal.

A pulley-rope-mass arrangement is shown in fig. Find the acceleration of block m_(1) when the masses are set free to move. Assume that the pulley and the ropes are ideal.

Block A of mass m//2 is connected to one end of light rope which passes over a pulley as shown in fig. A man of mass m climbs the other end of rope with a relative acceleration of g//6 with respect to rope. Find the acceleration of block A and tension in the rope.

ALLEN-NEWTONS LAWS OF MOTION-EXERCISE-II
  1. A frame will be inertial, if it moves with respect to another inertial...

    Text Solution

    |

  2. Two masses 10 kg and 20 kg respectively are connected by a massless sp...

    Text Solution

    |

  3. The pulley arrangements shown in figure are identical, the mass of the...

    Text Solution

    |

  4. What is the mechanical advantage of single fixed pulley:-

    Text Solution

    |

  5. Three masses of 1 kg, 6 kg and 3 kg are connected to each other with t...

    Text Solution

    |

  6. A balloons of mass M is descending at a constant acceleration alpha. W...

    Text Solution

    |

  7. The surface are frictionless, the ratio of T(1) and T(2) is

    Text Solution

    |

  8. The elevator shown in fig. is descending with an acceleration of 2ms^(...

    Text Solution

    |

  9. Two blocks of masses 6 kg and 4 kg are connected b a rope of mass 2 kg...

    Text Solution

    |

  10. A block of mass 2 kg is placed on the floor . The coefficient of stati...

    Text Solution

    |

  11. In the adjoining figure all surface are frictionless . What force F mu...

    Text Solution

    |

  12. A tennis ball is dropped on the floor from a height of 20m. It rebound...

    Text Solution

    |

  13. The frictional force of the air on the body of mass 0.25kg, falling wi...

    Text Solution

    |

  14. A man weighing 100 kg carriesa load of 10kg on his head. He jumps from...

    Text Solution

    |

  15. Two masses of 10kg and 5kg are suspended from a rigid support as shown...

    Text Solution

    |

  16. A ship of mass 3xx10^(2)kg initially at rest is pulled by a force of 5...

    Text Solution

    |

  17. A 150 g ball, moving horizontally at 20m/s was hit straight back to bo...

    Text Solution

    |

  18. A block of mass 15kg is placed on a long trolley. The cofficient of fr...

    Text Solution

    |

  19. A rope lies on a table such that a part of it hangs down the table, wh...

    Text Solution

    |

  20. A block A of mass 2 kg rests on another block B of mass 8 kg which res...

    Text Solution

    |