Home
Class 11
PHYSICS
If in Q . 21 the speed of the stone is i...

If in Q . 21 the speed of the stone is increased beyond the maximum permissible value and the string breaks suddenly which of the following correctly describes the trajectory of the stone after the string breaks :
(a) the stone jerks radially outwards
(b) the stone flies off tangentially from the instant the string breaks
(c) the stone flies off at an angle with the tangent whose magnitude depends on the speed of the stone ?

Text Solution

Verified by Experts

Alternative (b) is correct, according to the First Law
Promotional Banner

Topper's Solved these Questions

  • LAW OF MOTION

    NCERT TAMIL|Exercise EXERCISE (ADDITIONAL EXERCISE)|17 Videos
  • LAW OF MOTION

    NCERT TAMIL|Exercise EXERCISE (ADDITIONAL EXERCISE)|17 Videos
  • KINETIC THEORY OF GASES

    NCERT TAMIL|Exercise EVALUATION (Numerical Problems)|8 Videos
  • LAWS OF MOTION

    NCERT TAMIL|Exercise EXERCISE (V. Numerical Problems)|14 Videos

Similar Questions

Explore conceptually related problems

How will you determine the density of a stone using a measuring jar?

A stone of mass m tied to a string of length l is rotated in a circle with the other end of the string as the centre. The speed of the stone is v. If the string breaks, the stone will move

Read the following paragraph carefully and answer the following: Tie a stone to one end of a string. Take the other end in your hand and rotate the string so that the stone moves along a circle. As long as we are holding the string, we are pulling the stone towards us i.e. towards the centre of the circle and are appliying a force towards it. The force stops acting on it if we release the string. In this case, the stone will fly off along a straight line which is the tangent to the circle at the position of the stone when the string is released, because that the directionn of its velocity at that instant of time. You may recall a similar activity in which a 5 rupee coin kept on a rotating circular disc flies off the disc along the tangent to the disc. Thus, a force acts on any object moving along a circle and it is directed towards the centre of the circle. This is called the Centripetal force. What is centripetal force?

The volume of water is a measuring cylinder is 50 ml. When a stone is tied to a string is immersed in the water, the water level rises to 83 ml. Find the volume of the stone.

Why does a stone sink when placed on the surface of water?

Read the following paragraph carefully and answer the following: Tie a stone to one end of a string. Take the other end in your hand and rotate the string so that the stone moves along a circle. As long as we are holding the string, we are pulling the stone towards us i.e. towards the centre of the circle and are appliying a force towards it. The force stops acting on it if we release the string. In this case, the stone will fly off along a straight line which is the tangent to the circle at the position of the stone when the string is released, because that the directionn of its velocity at that instant of time. You may recall a similar activity in which a 5 rupee coin kept on a rotating circular disc flies off the disc along the tangent to the disc. Thus, a force acts on any object moving along a circle and it is directed towards the centre of the circle. This is called the Centripetal force. What happens if the string is released?

Read the following paragraph carefully and answer the following: Tie a stone to one end of a string. Take the other end in your hand and rotate the string so that the stone moves along a circle. As long as we are holding the string, we are pulling the stone towards us i.e. towards the centre of the circle and are appliying a force towards it. The force stops acting on it if we release the string. In this case, the stone will fly off along a straight line which is the tangent to the circle at the position of the stone when the string is released, because that the directionn of its velocity at that instant of time. You may recall a similar activity in which a 5 rupee coin kept on a rotating circular disc flies off the disc along the tangent to the disc. Thus, a force acts on any object moving along a circle and it is directed towards the centre of the circle. This is called the Centripetal force. The impressed force on the same is in which direction?

A stone is released from an elevator going up with an acceleration a. The acceleration of the stone after the release is

NCERT TAMIL-LAW OF MOTION-EXERCISE
  1. One end of a string of length 'l' is connected to a particle of m...

    Text Solution

    |

  2. A constant retarding force of 50 N is applied to a body of mass 20 kg ...

    Text Solution

    |

  3. A constant force acting on a body of mass 3 kg changes its speed from ...

    Text Solution

    |

  4. A body of mass 5 kg is acted upon by two perpendicular forces 8 N and ...

    Text Solution

    |

  5. The driver of a three wheeler moving with a speed of 36 km//h sees a c...

    Text Solution

    |

  6. A rocket with a lift off mass 20000 kg is blasted upwards with a net i...

    Text Solution

    |

  7. A body of mass 0 .40 kg moving initially with a constant speed of 10 ...

    Text Solution

    |

  8. A truck starts from rest and accelerate uniformly with 2 ms^(-2) . At ...

    Text Solution

    |

  9. A bob of mass 0.1 kg hung from the ceilling of a room by a string 2 m ...

    Text Solution

    |

  10. A man of mass 70 kg stands on a weighing machine in a lift , which is ...

    Text Solution

    |

  11. Figure shows the position-time graph of a particle of mass 4 kg. Wha...

    Text Solution

    |

  12. Two bodies of masses 10 kg and 20 kg respectively kept on a smooth hor...

    Text Solution

    |

  13. Two masses 7 kg and 12 kg are connected at the two ends of a light ine...

    Text Solution

    |

  14. A nucleus is at rest in the laboratory frame of reference Show that if...

    Text Solution

    |

  15. Two billiard balls each of mass 0 .05 kg moving in opposite directions...

    Text Solution

    |

  16. A bullet of mass 50 g is fired by a gun of mass 5 kg .If the muzzle s...

    Text Solution

    |

  17. A batsman deflects a ball by an angle of 45^(@) without changing its i...

    Text Solution

    |

  18. A stone of of mass 0 .25 kg tied to the end of a string is whirled rou...

    Text Solution

    |

  19. If in Q . 21 the speed of the stone is increased beyond the maximum pe...

    Text Solution

    |

  20. Explain why? (a) a horse cannot pull a cart and run in empty space. ...

    Text Solution

    |