Home
Class 11
PHYSICS
A fat person is standing oa ligh plank f...

A fat person is standing oa ligh plank floating on a calm lake. The person walks from one end to the other on the plank. His friend sitting on the shore watches him and finds that the person hardly moves any distance because the plank moves basckward about the same distance as the person moves on the plank. Explain.

Promotional Banner

Topper's Solved these Questions

  • CENTRE OF MASS, LINEAR MOMENTUM, COLLISION

    HC VERMA|Exercise Objective 1|17 Videos

  • CENTRE OF MASS, LINEAR MOMENTUM, COLLISION

    HC VERMA|Exercise Objective -1|1 Videos

  • CENTRE OF MASS, LINEAR MOMENTUM, COLLISION

    HC VERMA|Exercise worked out Examples|23 Videos

  • CALORIMETRY

    HC VERMA|Exercise Exercises|18 Videos

  • CIRCULAR MOTION

    HC VERMA|Exercise Exercises|30 Videos

Similar Questions

Explore conceptually related problems

A man of mass M stands at one end of a stationary plank of length L, lying on a smooth surface. The man walks to the other end of the plank. If the mass of the plank is M//3 , the distance that the man moves relative to the ground is

A boy of mass m stands on one end of a wooden plank of length L and mass M. The plank is floating on water. If the boy walks from one end of the plank to the other end at a constant speed, the resulting displacement of the plank is given by :

A man of mass M stands at one end of a plank of length L Which lies at rest on a frictionless surface . The man walks to the other end of the plank. If the mass of the plank is 3M, the distance that the man moves relative to the ground is

A man of mass M stands at one end of a plank of length L which lies at rest on a frictionless surface. The man walks to the other end of the planck. If the mass of the planck is M/2 , then the distance that the man moves relative to the ground is

In the figure shown, when the persons A and B exchange their positions, then the distance moved by the plank is _____.

A wooden plank of mass 20 kg is resting on a smooth horizontal floor. A man of mass 60 kg starts moving from one end of the plank to the other end. The length of the plank is 10 m. Find the displacement of the plank over the floor when the man reaches the other end of the plank.

A wooden plank of mass 20kg is resting on a smooth horizontal floor. A man of mass 60kg starts moving from one end of the plank to the other end. The length of the plank is 10m . Find the displacement of the plank over the floor when the man reaches the other end of the plank.

HC VERMA-CENTRE OF MASS, LINEAR MOMENTUM, COLLISION-Short Answer
  1. A bob suspended from the ceiling of a car which is accelerating on a h...

    Text Solution

    |

  2. You are waiting for a train on a railway platform. Your three year old...

    Text Solution

    |

  3. IN a headon collision between two particles, is it necessary that the ...

    Text Solution

    |

  4. A collision experiment is done on a horizontal table kept in an elevat...

    Text Solution

    |

  5. Two bodies make an elastic head on colision on a smooth horizontal tab...

    Text Solution

    |

  6. If the total mechanicla energy of a particle is zero is its linear mom...

    Text Solution

    |

  7. If the linear momentum of a prticle is known can you find its kinetic ...

    Text Solution

    |

  8. What can be said about the centre of mass f a uniform hemisphere witho...

    Text Solution

    |

  9. You re holding a cage contasining a bird. Do you hasve to make less ef...

    Text Solution

    |

  10. A fat person is standing oa ligh plank floating on a calm lake. The pe...

    Text Solution

    |

  11. A high jumper successully clears the bar. Is it possibel that his cent...

    Text Solution

    |

  12. Which of the two persons show in figure is more likely to fall down? W...

    Text Solution

    |

  13. Suppose we define a quantity Linear Pomentum as linear pomentum =massx...

    Text Solution

    |

  14. Use the definition of linear pometum form the previous qestion. Can we...

    Text Solution

    |

  15. To accelerate a car we ignite petrol in the engine of the car. Since o...

    Text Solution

    |

  16. A ball is moved on a horizontal table with some velocity. The ball sto...

    Text Solution

    |

  17. Consider the situation of the previous problem. Take the table and the...

    Text Solution

    |

  18. When a nucleus at rest emits a beta particle, it is found that the vel...

    Text Solution

    |

  19. A van is standing on a frictionless portion of a horizontal road. To s...

    Text Solution

    |

  20. In one dimensional elastic collison of equla masses, the velocities ar...

    Text Solution

    |