Home
Class 11
PHYSICS
A satellite revolves in a circular orbit...

A satellite revolves in a circular orbit with speed, `V=1/(sqrt(3))V_(e)`. If satellite is suddenly stopped and allowed to fall freely onto the earth, the speed with which it hits the earth's surface is

A

`sqrt(gR)`

B

`sqrt((gR)/3)`

C

`sqrt(2gR)`

D

`sqrt(2/3gR)`

Text Solution

Verified by Experts

The correct Answer is:
D
`V=sqrt(V_(e)^(2)-2V_(0)^(2))`
Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    NARAYNA|Exercise EXERCISE -I (H.W.)|56 Videos

  • GRAVITATION

    NARAYNA|Exercise EXERCISE -II (C.W.)|38 Videos

  • GRAVITATION

    NARAYNA|Exercise EVALUATE YOURSELF-5|10 Videos

  • FRICTION

    NARAYNA|Exercise Passage type of questions I|6 Videos

  • KINETIC THEORY OF GASES

    NARAYNA|Exercise LEVEL-III(C.W)|52 Videos

Similar Questions

Explore conceptually related problems

An artificial satellite is moving in a circular orbit around the earth with a speed equal to half the magnitude of escape velocity from the earth. (i) Determine the height of the satellite above the earth's surface. (ii) If the satellite is stopped suddenly in its orbit and allowed to fall freely onto the earth, find the speed with which it hits the surface of the earth.

The artifical satellite is moving in a circular around the earth with a speed equal to half the magnitude of escape velocity from the earth. (i) Determine the height of the satellite above the earth's surface, (ii) If the satellite is stopped suddenly in its orbit and allowed to fall freely on to the earth , find the speed with which it hits surface of the earth. Take g=9.8ms^(-2) , radius of the earth =6400km.

An artificial satellite is moving in a circular orbit around the earth with a speed equal to half the magnitude of escape velocity from the earth. If the satellite is stopped suddenly in its orbit and allowed to fall freely on the earth, find the speed with which it hits the surface of earth. Given M = mass of earth and R = Radius of earth

If the satellite is stopped suddenly in its orbit which is at a distnace = radius of earth from earth’s surface and allowed to fall freely into the earth, the speed with which it hits the surface of earth will be -

An artificial satellite is moving in a circular orbit around the earth with a speed of equal to half the magnitude of escape velocity from earth. (i). Determine the height of the satellite above the earth's surface (ii). If the satellite is stopped suddenly in its orbit and allowed to fall freely on the earth. Find the speed with it hits and surface of earth. Given M="mass of earth & R "="Radius of earth"

A satellite is revolving round the earth in circular orbit

A satellite revolves around the earth in an elliptical orbit. Its speed is

NARAYNA-GRAVITATION-EXERCISE -I (C.W.)
  1. The escape velocity from the surface of the earth of radius R and dens...

    Text Solution

    |

  2. A body is projected vertically up from surface of the earth with a vel...

    Text Solution

    |

  3. A spaceship is launched in to a circular orbit of radius R close to su...

    Text Solution

    |

  4. The escape velocity from the earth is 11 km//s. The escape velocity fr...

    Text Solution

    |

  5. An object of mass m is at rest on earth's surface. Escape speed of thi...

    Text Solution

    |

  6. A satellite revolves in a circular orbit with speed, V=1/(sqrt(3))V(e)...

    Text Solution

    |

  7. A space station is set up in space at a distance equal to the earth's ...

    Text Solution

    |

  8. The orbital speed for an earth satellite near the surface of the earth...

    Text Solution

    |

  9. Two satellite are revolving round the earth at different heights. The...

    Text Solution

    |

  10. A satellite of mass m revolves around the earth of radius R at a hight...

    Text Solution

    |

  11. Two satellites M and N go around the earth in circular orbits at heigh...

    Text Solution

    |

  12. A satellite of mass m revolves revolves round the earth of mass M in a...

    Text Solution

    |

  13. The moon revolves round the earth 13 times in one year. If the ratio o...

    Text Solution

    |

  14. A satellite is launched into a circular orbit of radius R around the e...

    Text Solution

    |

  15. An astronaut orbiting in a spaceship round the earth has a centripetal...

    Text Solution

    |

  16. A satellite moves around the earth in a circular orbit with speed v. I...

    Text Solution

    |

  17. The K.E. of a satellite in an orbit close to the surface of the earth ...

    Text Solution

    |

  18. Two satellite of masses 400 kg,500kg are revolving around earth in dif...

    Text Solution

    |

  19. The kinetic energy needed to project a body of mass m from the earth s...

    Text Solution

    |

  20. Orbital speed of geo-stationary satellite is

    Text Solution

    |