Home
Class 11
PHYSICS
An artificial satellite is moving in a c...

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.

A

`2R`

B

`R/2`

C

`R`

D

`R/4`

Text Solution

Verified by Experts

The correct Answer is:
C
`sqrt((GM)/(R+h))=1/2sqrt((2GM)/R)impliesh=R`
Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    CENGAGE PHYSICS|Exercise Multiple Correct|24 Videos

  • GRAVITATION

    CENGAGE PHYSICS|Exercise Assertion- Reasoning|13 Videos

  • GRAVITATION

    CENGAGE PHYSICS|Exercise Subjective|15 Videos

  • FLUID MECHANICS

    CENGAGE PHYSICS|Exercise INTEGER_TYPE|1 Videos

  • KINEMATICS-1

    CENGAGE PHYSICS|Exercise Integer|9 Videos

Similar Questions

Explore conceptually related problems

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 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"

An artificial satellite is moving in a circular orbit around the earth with a speed equal to half the magnitude of esacpe velocity from the earth the height of the satellite satellite above the earth surface will be

An artificial satellite is moving in a circular orbit around the earth, with a speed which is equal to half the magnitude of the escape velocity from the earth. What is the height of the satellite above the surface of the earth ?

An artificial satellite is moving in a circular orbit around the earth with a speed equal to half the escape velocity from the earth of radius R. The height of the satellite above the surface of the earth is

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. The height of the satellite above the surface of the earth is x R. Find the value of x.

An artificial satellite moving in a circular orbit around the earth with a speed equal to half the magnitude of escape velocity from the earth's surface, will be at a height_______________ km.

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

CENGAGE PHYSICS-GRAVITATION-Single Correct
  1. A satellite of mass m revolves around the earth of radius R at a hight...

    Text Solution

    |

  2. A projectile is fired from the surface of earth of radius R with a vel...

    Text Solution

    |

  3. An artificial satellite is moving in a circular orbit around the earth...

    Text Solution

    |

  4. Two concentric shells of masses M(1) and M(2) are having radii r(1) an...

    Text Solution

    |

  5. A satellite of mass m is orbiting around the earth at a height h above...

    Text Solution

    |

  6. Two concentric shells have masses M and m and their radii are R and r,...

    Text Solution

    |

  7. A solid sphere of uniform density and radius 4 units is located with i...

    Text Solution

    |

  8. Three equal masses m are placed at the three corners of an equilateral...

    Text Solution

    |

  9. Figure shows a planet in an elliptical orbit around the Sun S. Where i...

    Text Solution

    |

  10. The escape velocity corresponding to a planet of mass M and radius R i...

    Text Solution

    |

  11. A planet is revolving around the Sun in an elliptical orbit. Its close...

    Text Solution

    |

  12. The radii of two planets are respectively R(1) and R(2) and their dens...

    Text Solution

    |

  13. Figure shows the motion of a planet around the Sun S in an elliptical ...

    Text Solution

    |

  14. A body is fired with a velocity of magnitude sqrt(gR)ltVltsqrt(2gR) at...

    Text Solution

    |

  15. A system of binary stars of mass m(A) and m(B) are moving in circular ...

    Text Solution

    |

  16. Two spherical bodies of mass M and 5M & radii R & 2R respectively are ...

    Text Solution

    |

  17. The change in the value of 'g' at a height 'h' above the surface of th...

    Text Solution

    |

  18. A particle of mass 10g is kept on the surface of a uniform sphere of ...

    Text Solution

    |

  19. A tunnel is dug along the diameter of the earth. There is particle of ...

    Text Solution

    |

  20. A cavity of radius R//2 is made inside a solid sphere of radius R. The...

    Text Solution

    |