Home
Class 12
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

`5 ms^(-1)`

B

`10 ms^(-1)`

C

`15 ms^(-1)`

D

`20 ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • WORK ENERGY AND POWER

    VMC MODULES ENGLISH|Exercise EFFICIENT|50 Videos

  • WAVE MOTION

    VMC MODULES ENGLISH|Exercise JEE ADVANCED ARCHIVE LEVEL 2 (TRUE FALSE TYPE)|4 Videos

Similar Questions

Explore conceptually related problems

The minimum and maximum distances of a satellite from the centre of the earth are 2R and 4R respectively where R is the radius of earth and M is the mass of the earth find radius of curvature at the point of minimum distance.

The minimum and maximum velocities of a projectile are 10 ms^(-1) and 20 ms^(-1) respectively. The horizontal range and maximum height are respectively (g=10 ms^(-2) )

The minimum and maximum distances of a satellite from the center of the earth are 2R and 4R respectively, where R is the radius of earth and M is the mass of the earth . Find (a) its minimum and maximum speeds, (b) radius of curvature at the point of minimum distance.

A rocket is launched upward from the earth surface whose velocity time graph shown in figure. Then maximum height attained by the rocket is :

Maximum height reached by a rocket fired with a speed equal to 50% of the escape velocity from earth's surface is:

A particle is throws vertically upwards from the surface of earth and it reaches to a maximum height equal to the radius of earth. The radio of the velocity of projection to the escape velocity on the surface of earth is

A mass m is taken to a height R from the surface of the earth and then is given a vertical velocity upsilon . Find the minimum value of upsilon , so that mass never returns to the surface of the earth. (Radius of earth is R and mass of the earth m ).

Find work done in shifting a body of mass m from a height h above the earth's surface to a height 2h above the earth's surface..

The minimum projection velocity of a body from the earth's surface so that it becomes the satellite of the earth (R_(e)=6.4xx10^(6) m) .

A simple pendulum with bob of mass m and conducting wire of length L swings under gravity through an angle 2 theta . The earth's magnetic field component in the direction perpendicular to swing is B . Maximum potential difference induced across the pendulum is

VMC MODULES ENGLISH-WORK ENERGY AND POWER -IMPECCABLE
  1. A man pushes against a wall but fails to move it. He does

    Text Solution

    |

  2. A body moves a distance of 10 m along a straight line under the action...

    Text Solution

    |

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

    Text Solution

    |

  4. A body is thrown vertically up with certain initial velocity, the pote...

    Text Solution

    |

  5. A body of mass 2 kg is thrown up vertically with kinetic energy of 490...

    Text Solution

    |

  6. A rod of length L and mass m is kept vertically on the ground. Its pot...

    Text Solution

    |

  7. A particle moves in a straight line with retardation proportional to i...

    Text Solution

    |

  8. Water falls from a height of 60 m at the rate of 15 kg//s to operate a...

    Text Solution

    |

  9. A pump motor is used to deliver water at a certain rate from a given p...

    Text Solution

    |

  10. A machine is delivering constant power to drive a body along a straigh...

    Text Solution

    |

  11. The particle of mass m is moving in a circular path of constant radius...

    Text Solution

    |

  12. A motor of power 60 W draws current 5 A from a source of 15 V. What is...

    Text Solution

    |

  13. An engine pumps up 100kg of water through a height of 10m in 5s. Given...

    Text Solution

    |

  14. A particle of mass 100 g is thrown vertically upwards with a speed of ...

    Text Solution

    |

  15. How much work must work be done by a force on 50 kg body in order to a...

    Text Solution

    |

  16. when the bob of a simple pendulum swings, the work done by tension in ...

    Text Solution

    |

  17. A body of mass 10 kg initially at rest acquires velocity 10 ms^(-1). W...

    Text Solution

    |

  18. A block of mass m=2kg is pulled by a force F=40 N upwards through a h...

    Text Solution

    |

  19. A spring of spring constant 5 xx 10^(3) N//m is stretched initially by...

    Text Solution

    |

  20. 300J of work is done in slinding a 2 kg block up an inclined plane of ...

    Text Solution

    |