Home
Class 12
PHYSICS
A unifrom chain of mass m hannges from a...

A unifrom chain of mass m hannges from a light pulley ,with unequal lenghts hanging from the two sides of the pulley .The force exerted by the moving chain on the pulley is

A

`mg`

B

`gtmg`

C

`ltmg`

D

May be any these depending on the time elapsed

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • KINEMATICS, FORCES

    D MUKHERJEE|Exercise Type 2|22 Videos
  • IIT QUESTIONS 5

    D MUKHERJEE|Exercise Matrix matching type|2 Videos
  • MISCELLANEOUS QUESTION 1

    D MUKHERJEE|Exercise Miscellaneous Questions-1 (Straight-Objective Type)|54 Videos

Similar Questions

Explore conceptually related problems

A uniform chain of mass m hangs from a light pulley, with unequal lengths of the chain hanging from the two sides of the pulley. The force exerted by the moving chain on the pulley is

A uniform chain of mass 2 kg hangs from a light pulley with unequal lenghts of the chain hanging from the two sides of the pulley. The force exerted by the moving chain on the pulley is

Two masses m and 2m are connected by a massless string, which passes over a pulley as shown in figure. The masses are held initially with equal lengths of the strings on either side of the pulley. Find the velocity of masses at the instant the lighter mass moves up a distance of 15m. ( g = 10 m//s^(2) )

All the surface are smooth and the strings ans pulleys are light. The force exerted by the 20 cm part of the rod on the 10 cm part is

A uniform chain of mass m_0 and length l rests on a rough incline with its part hanging vertically as shown in the fig. The chain starts sliding up the incline (and hanging part moving down) provided the hanging part equals eta times the chain length ( eta lt 1). What is the work performed by the friction force by the time chain slides completely off the incline. Neglect the dimension of pulley and assume it to be smooth.

A block of mass M is hanging over a smooth and light pulley through a light string. The other end of the string is pulled by a constant force F. The kinetic energy of the block increases by 20 J in 1 s:-

On a pulley of mass M hangs a rope with two masses m_(1) and m_(2) (m_(1) gt m_(2) ) tied at the ends as shown in the figure. The pulley rotates without any friction, whereas the friction between the rope and the pulley is large enough to prevent any slipping. Which of the following plots best represents the difference between the tensions in the rope on the two sides of the pulley as a function of the mass of the pulley ?

Consider4 the situation shown in figure. Bothe the pulleys and the string are light and all the surfaces are friction less. a. Find the acceleration of the mass M. b. Find the tension in the string c. Calculate the force exerted by the clamp on the pulley A in the figure.

In the situation shown in figure, both the pulleys and the strings are light and all the surfaces are frictionless. The acceleration of mass M, tension in the string PQ and force exerted by the clamp on the pulley, will respectively be -

D MUKHERJEE-KINEMATICS, FORCES-Revision Exercise
  1. A train of length 200m switches on its heat when it starts moving wio...

    Text Solution

    |

  2. A stick is thrown in the air and lands at some distance from the throw...

    Text Solution

    |

  3. A Car stats from rest and moves on a surface on which the coeffcient w...

    Text Solution

    |

  4. A unifrom chain of mass m hannges from a light pulley ,with unequal le...

    Text Solution

    |

  5. A ball of mass m is dropped onto a floor from a certain height. The co...

    Text Solution

    |

  6. An insect of mass m is initially at one end of a stick of length L and...

    Text Solution

    |

  7. Three ships A, B and C are in motion. The motion of A as seen by B is ...

    Text Solution

    |

  8. A point moving along the x-direction starts from rest at x=0 and comes...

    Text Solution

    |

  9. A man of mass m stands on a long flat car of mass M , moving with velo...

    Text Solution

    |

  10. A small body b starts from rest at the hightest point A of a large fi...

    Text Solution

    |

  11. A spring of force constant K rests on a smooth floor, with one end fix...

    Text Solution

    |

  12. A variable force F acts on a body which is free to move. The displacem...

    Text Solution

    |

  13. A cannon shell 1 and 2 km away from the cannon. A second shell, fired ...

    Text Solution

    |

  14. A unifrom heavy chain is placed on a table with a part of it hanging o...

    Text Solution

    |

  15. A block rests on a rough floor. A horizontal force which increases lin...

    Text Solution

    |

  16. A particle moving with velocity V changes its direction of motion by a...

    Text Solution

    |

  17. A frame of reference F(2) moves with velocity vecv with respect to ano...

    Text Solution

    |

  18. Two bodies of masses m and M are attached to the two ends of a light s...

    Text Solution

    |

  19. A particle starts from the origin of coordinates at time t = 0 and mov...

    Text Solution

    |

  20. A man holds a thin sticks at its two ends and bends it in an arc, like...

    Text Solution

    |