Home
Class 11
PHYSICS
A small body is released from a height H...

A small body is released from a height H of an inclined plane. At the bottom of the plane is a loop of radius R as shown : ignoring friction, the minimum H required for the body to just complete the loop (that is, reach the point O) is

A

2R

B

`(5R)/2`

C

3R

D

`(7R)/2`

Text Solution

Verified by Experts

The correct Answer is:
B

`1/2 m5gR = mgH implies H =5/2R`
Promotional Banner

Topper's Solved these Questions

  • WORK, ENERGY POWER AND COLLISION

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Power)|18 Videos
  • WORK, ENERGY POWER AND COLLISION

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Elastic and Inelastic Collision)|44 Videos
  • WORK, ENERGY POWER AND COLLISION

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Work Done by Variable Force)|26 Videos
  • WAVES AND SOUND

    ERRORLESS|Exercise ASSERTION & REASON |25 Videos

Similar Questions

Explore conceptually related problems

A block of mass m is released from the top of a mooth inclined plane of height h its speed at the bottom of the plane is proportion to

A block is released from rest at the top of an inclined plane which later curves into a circular track of radius r as shown in figure. Find the minimum height h from where it should be released so that it is able to complete the circle.

An object of mass m is released from rest from the top of a smooth inclined plane of height h. Its speed at the bottom of the plane is proportional to

A block is released from top of a smooth inclined plane.It reaches the bottom of the plane in 6 sec.The time taken by the body to cover the first half of the inclined plane is:

A block is released from top of a smooth inclined plane It reaches the bottom of the plane in sqrt2s The time taken (in second) by the body to cover Ist half of inclined plane is .

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 particle of mass m is released from a height H on a smooth curved surface which ends into a vertical loop of radius R , as shown. Choose the correct alernative(s) if H=2R .

ERRORLESS-WORK, ENERGY POWER AND COLLISION-NCERT BASED QUESTIONS (Conservation of Energy and Momentum)
  1. Two identical cylindrical vessels with their bases at the same level e...

    Text Solution

    |

  2. Two identical blocks A and B , each of mass m resting on smooth floor ...

    Text Solution

    |

  3. A small body is released from a height H of an inclined plane. At the ...

    Text Solution

    |

  4. Two plates each of the mass m are connected by a massless spring as sh...

    Text Solution

    |

  5. An electron and a proton are moving under the influence of mutual forc...

    Text Solution

    |

  6. A proton is kept at rest. A positively charged particle is released fr...

    Text Solution

    |

  7. Figure below shows a small mass connected to a string, which is attach...

    Text Solution

    |

  8. A particle is acted upon by a force given by F = - alphax^(3) -betax^...

    Text Solution

    |

  9. A block of mass m slides from rest at a height H on a frictionless inc...

    Text Solution

    |

  10. A body moves in a circular orbit of radius R under the action of a cen...

    Text Solution

    |

  11. A particle with total mechanical energy, which is small and negative, ...

    Text Solution

    |

  12. A uniform thin rod of length 2L and mass m lies on a horizontal table....

    Text Solution

    |

  13. The graph between the resistive force F acting on a body and the dista...

    Text Solution

    |

  14. Which of the following graph is correct between kinetic energy E, pote...

    Text Solution

    |

  15. The potential energy of the system is represented in the first figure....

    Text Solution

    |

  16. The graph betwee sqrt(E) and (1)/(p) is (E=kinetic energy and p= momen...

    Text Solution

    |

  17. A particle of mass 4 m which is at rest explodes into three fragments....

    Text Solution

    |

  18. A particle is dropped a height h. A constant horizontal velocity is gi...

    Text Solution

    |

  19. Which of the diagram shown in figures respresents variation of total m...

    Text Solution

    |

  20. Which of the diagrams shown in figure. Most closely shows the variatio...

    Text Solution

    |