Home
Class 11
PHYSICS
A child is swinging a swing. Minimum and...

A child is swinging a swing. Minimum and maximum heights fo swing from the earth's surface are 0.75 m and 2 m respectively. The maximum velocity of this swing is

A

10 m/s

B

5 m/s

C

8 m/s

D

15 m/s

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Work, Energy and power

    SL ARORA|Exercise EXERCISE|415 Videos

  • Waves

    SL ARORA|Exercise EXERCISE|558 Videos

  • WORK, POWER AND ENERGY

    SL ARORA|Exercise Type F Based on Collisions|6 Videos

Similar Questions

Explore conceptually related problems

The height of a swing changes during its motion from 0.1 m to 2.5 m . The minimum velocity of a boy who swings in this swing is

A swinging pendulum has its maximum acceleration at

A body swinging on a swing is 1 metre above the ground at the lowest point. He is 2m above the ground at the highest postiion. What is the velocity at the lowest point of the swing?

A 4 kg balls is swing in a vertical circle at the end of a cord 1 m long. The maximum speed at which it can swing if the cord can sustain maximum tension of 163.6 N will be

A boy sitting on a swing which is moving to an angle of 30^(@) from the vertical is blowing a whistle which is of frequency 1000Hz . The whistle is 2m from the point of support of the swing. If a girl stands in front of the swing, the maximum and minimum frequencies she will hear are (velocity of sound =330m//s , g=9.8m//s^(2) )

SL ARORA-Work, Energy and power-EXERCISE
  1. A block of mass 10 kg, moving in x-direction with a constant speed of ...

    Text Solution

    |

  2. A ball is thrown vertically downwards from a height of 20m with an int...

    Text Solution

    |

  3. A child is swinging a swing. Minimum and maximum heights fo swing from...

    Text Solution

    |

  4. 300J of work is done in slinding a 2 kg block up an inclined plane of ...

    Text Solution

    |

  5. The potential energy of a long spring when stretched by 2 cm is U. If ...

    Text Solution

    |

  6. Two springs A and B (k(A)=2k(B)) are stretched by applying forces of e...

    Text Solution

    |

  7. A mass of 0.5 kg moving with a speed of 1.5 m/s on a horizontal smooth...

    Text Solution

    |

  8. A vertical spring with force constant k is fixed on a table. A ball of...

    Text Solution

    |

  9. Two similar springs P and Q have spring constant K(P) and K(Q) such th...

    Text Solution

    |

  10. The potential energy of a particle in a force field is: U = (A)/(r^(...

    Text Solution

    |

  11. The potential energy between two atoms in a molecule is given by, U((x...

    Text Solution

    |

  12. A body of mass 1 kg is thrown upwards with a velocity 20 ms^(-1). It m...

    Text Solution

    |

  13. An engine pumps water continously through a hose. Water leave the hose...

    Text Solution

    |

  14. A block of mass m attached in the lower and vertical spring The spring...

    Text Solution

    |

  15. The potential energy of a system increased if work is done

    Text Solution

    |

  16. A body projected vertically from the earth reaches a height equal to e...

    Text Solution

    |

  17. An engine pumps water through a hose pipe. Water passes through the pi...

    Text Solution

    |

  18. The heart of a man pumps 5 liters of blood through the arteries per mi...

    Text Solution

    |

  19. A car of mass m starta from rest and accelerates so that the instyanta...

    Text Solution

    |

  20. A partical of mass m is driven by a machine that deleveres a constant ...

    Text Solution

    |