Home
Class 11
PHYSICS
A small body slides from a height h down...

A small body slides from a height h down a smooth plane inclined at `45^(@)` to the horizontal. How will the body move if at the end of the plane it encounters (a) a completely elaatic plane, (b) an inelastic but smooth plane.

Text Solution

Verified by Experts

The correct Answer is:
It leaves the plane with velocity `sqrt(2gh)` at `45^(@)` with the verticle, it moves along the plane with velocity `sqrt(gh)`
Promotional Banner

Topper's Solved these Questions

  • LAWS OF MOTION, FREE BODY DIAGRAM

    NN GHOSH|Exercise Exercise (A)|27 Videos

  • KINETIC THEORY OF GASES

    NN GHOSH|Exercise All Questions|24 Videos

  • MOMENT, TORQUE, EQUILIBRIUM OF BODIES

    NN GHOSH|Exercise Exercises|33 Videos

Similar Questions

Explore conceptually related problems

It takes a block twice as long to slide down a plane incline at 45^(@) to the horizontal as it would take for it to slide down the same plane had the plane been frictionless. Colculate the coefficient of friction between block and inclined plane.

A body takes just twice the time as long to slide down a plane inclined at 30^(@) to the horizontal as if the plane were frictionless. The coefficient of friction between the body and the plane is

A body slides down an inclined plane having friction. Indicate the directions of the frictional force and the reaction of the plane on the body.

A block is released from the top of the smooth inclined plane of height h . Find the speed of the block as it reaches the bottom of the plane.

A block of mass m is placed on a smooth inclined plane of inclination theta with the horizontal. The force exerted by the plane on the block has a magnitude

Starting from rest, the time taken by a body sliding down on a rough inclined plane at 45^(@) with the horizontal is twice the time taken to travel on a smooth plane of same inclination and same distance. Then, the coefficient of kinetic friction is

A mass m slides down a fixed plane inclined at an angle a to the horizontal plane after covering the entire length of the inclined plane. The height of the inclined plane is h and the coefficient of friction over both surfaces is mu .

When a body slides down from rest along a smooth inclined plane making an angle of 30^(@) with the horizontal, it takes time 20s. When the same body slides down from rest along a rough inclined plane making the same angle and through the same distance, it takes time 20p is, where p is some number greater than 1. The coefficient of friction between the body and the rough plane is

NN GHOSH-LAWS OF MOTION, FREE BODY DIAGRAM-Exercise (B)
  1. Calculate the accelerations of the pulleys B and C and the tension in ...

    Text Solution

    |

  2. Calculate the acceleration of the block B of the figure Fig. 5.23, ass...

    Text Solution

    |

  3. A system of masses and pulleys is arranged in a vertical plane as show...

    Text Solution

    |

  4. Two monkey of masses 10 kg and 8 kg are moving along a verticle rope a...

    Text Solution

    |

  5. A rope is stretched between two stationary boats on the surface of a l...

    Text Solution

    |

  6. A thin, uniform chain is hanging vertically and its bottom end is touc...

    Text Solution

    |

  7. A mass M attached to the end of a small flexible rope of diameter d=1 ...

    Text Solution

    |

  8. A sphere of mass m(1)collides with a sphere of mass m(2) which is at r...

    Text Solution

    |

  9. Two equal smooth sphere of radius a are moving with equal speed u in o...

    Text Solution

    |

  10. A simple pendalum is suspended from a peg on a verticle wall . The pen...

    Text Solution

    |

  11. A small metal ball falls vertically and strickes a smooth plane inclin...

    Text Solution

    |

  12. A body projected at an angle alpha to the horizontal lands at the same...

    Text Solution

    |

  13. A small body slides from a height h down a smooth plane inclined at 45...

    Text Solution

    |

  14. A ball is projected from a given point with velocity u at some angle w...

    Text Solution

    |

  15. A particle of mass 1.0g moving with velocity v1=3.0i-2.0j experiences ...

    Text Solution

    |

  16. A ball moving translationally collides elastically with another, stati...

    Text Solution

    |

  17. The masses of A,B and C in the figure (Fig. 5.24) are m(A)=4 kg, m(B)=...

    Text Solution

    |

  18. To raise a weight which is half as much again as his weight a man fast...

    Text Solution

    |

  19. A hoop of mass M and radius R is placed on an absolutely smooth level ...

    Text Solution

    |

  20. A chain of length l and mass m is lumped over the hole in a horizontal...

    Text Solution

    |