Home
Class 12
PHYSICS
Assertion For looping a verticla loop of...

Assertion For looping a verticla loop of radius, r the minimum velocity at lowest point should be `sqrt(5gr).` Reason In this event the velocityh at the highest point will be zero.

A

Assertion is true, Reason is true, Reason is a correct explanation for Assertion

B

Assertion is true, Reason is true, Reason is not a correct explanation for Assertion

C

Assertion is true, Reason is false

D

Assertion is false, but Reason is true

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • CIRCULAR MOTION

    TARGET PUBLICATION|Exercise COMPETITIVE THINKING|102 Videos

  • CIRCULAR MOTION

    TARGET PUBLICATION|Exercise EVALUATION TEST|11 Videos

  • CIRCULAR MOTION

    TARGET PUBLICATION|Exercise EVALUATION TEST|11 Videos

  • ATOMS, MOLECULES AND NUCLEI

    TARGET PUBLICATION|Exercise Evaluation test|19 Videos

  • CURRENT ELECTRICITY

    TARGET PUBLICATION|Exercise Evaluation Test|6 Videos

Similar Questions

Explore conceptually related problems

The maximum velocity at the lowest point, so that the string just slack at the highest point in a vertical circle of radius l.

A fighter plane is moving in a vertical circle of radius 'r'. Its minimum velocity at the highest point of the circle will be

A body of mass m is revolving along a vertical circle of radius r such that the sum of its kinetic speed of the body at the highest point is sqrt2 rg then the speed of the body at the lowest point is

A particle is projected along the inner surface of a smooth vertical circle of radius R , its velocity at the lowest point being (1//5)(sqrt(95 gR)) . If the particle leaves the circle at an angular distance cos^(-1)(x//5) from the highest point, the value of x is.

A point mass m is moved in vertical circle of radius r with help of string. Velocity of mass is root(7gr) at lowest point. Tension in string at lowest point is

With what angular velocity should a 20 m long cord be rotated such that tension in it, while reaching the highest point, is zero

A body is moving in a verticle of radius r such that the string is just taut at its highest point. (i) The speed of the body at the highest point is sqrt(gr) (ii) The speed of the body at the lowest point is sqrt(5gr) (iii) The speed of the body when the string is horizontal is sqrt(3gr) (iv) The tension in the string is maximum when the body is in the lowest position.

A stone is fastened to one end of a string and is whirled in a verticla circle of radius R. Find the minimum speed the stone can have at the highest point of the circle.

TARGET PUBLICATION-CIRCULAR MOTION-CRITICAL THINKING
  1. An, aeroplane , flying in the sky, suddenly starts revolving in a vert...

    Text Solution

    |

  2. A hollow sphere has radius 6.4 m. Minimum velocity required by a motor...

    Text Solution

    |

  3. A bucket full of water is revolved in a vertical circle of radius 4 m ...

    Text Solution

    |

  4. A particle of mass m is rotating by means of a string in a vertical ci...

    Text Solution

    |

  5. A 2 kg stone at the end of a string 1 m long is whirled in a vertical...

    Text Solution

    |

  6. A 40kg child sits on a swing supported by two chains,each 3 m long. If...

    Text Solution

    |

  7. An aeroplane flying in the sky with a uniform speed of 200m//s moves i...

    Text Solution

    |

  8. In the above problem, the force exerted by the pilot on the seat at th...

    Text Solution

    |

  9. A women weighing 600 N is sitting in a car which is travelling at a co...

    Text Solution

    |

  10. A body of mass 1 kg is moving in a vertical circular path of radius 1 ...

    Text Solution

    |

  11. The maximum and minimum tension in the string whirling in a circle of ...

    Text Solution

    |

  12. A student weighing 667N rides a steadily rotating Ferris wheel (studen...

    Text Solution

    |

  13. A body is allowed to slide down a frictionless track from rest positio...

    Text Solution

    |

  14. Assertion For looping a verticla loop of radius, r the minimum velocit...

    Text Solution

    |

  15. A flywheel at rest is reached to an angular velocity of 36 rad//s in ...

    Text Solution

    |

  16. An engine requires 5 s to go from a speed of 600 r.p.m to 1200 r.p.m. ...

    Text Solution

    |

  17. A wheel of a vehicle is rotated to a uniform angular acceleration abou...

    Text Solution

    |

  18. When a ceiling fan is switched off, its angular velocity reduces to 50...

    Text Solution

    |

  19. A particle moves along a circle if radius (20 //pi) m with constant ta...

    Text Solution

    |

  20. A stone of mass 1kg tied to a light inextensible sstring of length L=1...

    Text Solution

    |