Home
Class 12
PHYSICS
A man of mass m moves on a plank of mas...

A man of mass `m` moves on a plank of mass `M` with a constant velocity `u` with respect to the plank, as shown in figure.
a.If the plank rests on smooth horizontal surface, determine the velocity of the plank. .

A

`(Mv)/(m+M)`

B

`(mv)/(M)`

C

`(Mv)/(m)`

D

`(mv)/(m+M)`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section - B) Objective Type Questions (One option is correct)|60 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section - C) Objective Type Questions (More than one option are correct)|29 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH INSTITUTE ENGLISH|Exercise Illustration|4 Videos

  • SEMICONDUCTOR ELECTRONICS: MATERIALS, DEVICES AND SIMPLE CIRCUITS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section-D (Assertion and reason))|5 Videos

  • TEST 1

    AAKASH INSTITUTE ENGLISH|Exercise EXERCISE|21 Videos

Similar Questions

Explore conceptually related problems

A man of mass m moves on a plank of mass M with a constant veloicty u with respect to the plank, as shown in figure. a.If the plank rest on smooth horizontal surface, determine the velocity of the plank. b If the man travels a distasnce L with respect to the plank, find the distance travelled by the plank with respect to te ground.

A man of mass m starts moving on a plank of mass M with constant velocity v with respect to plank. If the plank lies on a smooth horizontal surface, then velocity of plank with respect to ground is

Choose the correct option: A sphere of mass m is given some angular velocity about a horizontal axis through its centre and gently placed on a plank of mass 'm'. The co-efficient of friction between the two is mu . The plank rests on a smooth horizontal surface. The initial acceleration of the centre of sphere relative to the plank will be

A man of mass m moves with a constant speed on a plank of mass M and length l kept initially at rest on a frictionless horizontal surface, from one end to the other in time t. The speed of the plank relative to grounud while man is moving, is

A man of mass m moves with a constant speed on a plank of mass M and length l kept initially at rest on a frictionless horizontal surface, from one end to the other in time t. The speed of the plank relative to grounud while man is moving, is

A block of mass'm' it kept over the smooth surface of the plank of mass M. the plank of length l is kept over the smooth horizontal surface. A constant horizontal force F is applied onto the plank as shown in figure. Calculate the time after which the block falls off the plank?

A man of mass m is moving with a constant acceleration a w.r.t plank is .The plank less on a smooth horizontal floor If the mass of plank m then calculate the acceleration of plank and man w.r.t ground and frictional force extended by plank on man

A man of mass 50 kg is runing on a plank of mass 150 kg with speed of 8 m//s relative to plank as shows in the figure (both were initially at rest and velocity of man with respect to ground any how remains constant). Plank is placed on smooth horizontal surface. The man, while runing, whistle with frequency f_(o) . A detected (D) placed on plank detects frequency. The man jumps off with same velocity (w.r.t. to groung) from point D and slides on the smooth horizontal surface [Assume coefficient of friction between man and horizontal is zero]. The speed of sound in still medium is 330 m//s . Answer the following questions on the basis of above situations. The frequency of sound detected by detector D, before man jumps of the plank is

A man of mass 50 kg is runing on a plank of mass 150 kg with speed of 8 m//s relative to plank as shows in the figure (both were initially at rest and velocity of man with respect to ground any how remains constant). Plank is placed on smooth horizontal surface. The man, while runing, whistle with frequency f_(o) . A detected (D) placed on plank detects frequency. The man jumps off with same velocity (w.r.t. to groung) from point D and slides on the smooth horizontal surface [Assume coefficient of friction between man and horizontal is zero]. The speed of sound in still medium is 330 m//s . Answer the following questions on the basis of above situations. The frequency of sound detected by D , after man jumps off the plank is

A man of mass 50 kg is runing on a plank of mass 150 kg with speed of 8 m//s relative to plank as shows in the figure (both were initially at rest and velocity of man with respect to ground any how remains constant). Plank is placed on smooth horizontal surface. The man, while running, whistle with frequency f_(o) . A detected (D) placed on plank detects frequency. The man jumps off with same velocity (w.r.t. to ground) from point D and slides on the smooth horizontal surface [Assume coefficient of friction between man and horizontal is zero]. The speed of sound in still medium is 330 m//s . Answer the following questions on the basis of above situations. The frequency of sound detected by detector D , before man jumps of the plank is

AAKASH INSTITUTE ENGLISH-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-Assignment (Section - A) Objective Type Questions (One option is correct)
  1. A particle of mass m is thrown horizontally from the top of a tower an...

    Text Solution

    |

  2. A child is standing at one end of a long trolley moving with a speed v...

    Text Solution

    |

  3. A man of mass m moves on a plank of mass M with a constant velocity u...

    Text Solution

    |

  4. Two blocks of masses 5kg and 2kg are connected by a spring of negligib...

    Text Solution

    |

  5. A body falling vertically downwards under gravity breaks in two parts ...

    Text Solution

    |

  6. A body at rest breaks into two pieces of equal masses. The parts will ...

    Text Solution

    |

  7. Let I(A) and I(B) be moments of inertia of a body about two axes A and...

    Text Solution

    |

  8. The moment of inertia of a cylinder of mass 1000gm and radius 20cm abo...

    Text Solution

    |

  9. The angular momentum changes from 4 unit to 10 unit in 2 seconds. The ...

    Text Solution

    |

  10. A constant torque of 400Nm turns a wheel of moment of inertia 100kg m^...

    Text Solution

    |

  11. The masses of two uniform discs are in the ratio 2 : 1 and their radii...

    Text Solution

    |

  12. If the torque acting on a system is zero then, which of the followin q...

    Text Solution

    |

  13. The moment of inertia of a thin uniform rod about an axis passing thro...

    Text Solution

    |

  14. A rigid body of moment of inertia l has an angular acceleration alpha....

    Text Solution

    |

  15. A flywheel rotates about a fixed axis and slows down from 300 r.p.m to...

    Text Solution

    |

  16. A body starting from rest gains an angular speed of 540 r.p.m in 6 sec...

    Text Solution

    |

  17. A ring of mass 6kg and radius 40cm is revolving at the rate of 300 rpm...

    Text Solution

    |

  18. A ring of mass 10kg and diameter 0.4m is rotated about an axis passing...

    Text Solution

    |

  19. If radius of the earth contracts to half of its present value without ...

    Text Solution

    |

  20. A wheel whose moment of inertia is 10kgm^(2) has an initial angular ve...

    Text Solution

    |