Home
Class 11
PHYSICS
The escape velocity of a body of mass 1k...

The escape velocity of a body of mass 1kg when projected from the surface of the earth vertically is `11.2"kms"^(-1)`. The escape velocity of a body of 1gm when projected at an angle `30^@` with the horizontal is

A

`11.2/sqrt2 "kms"^(-1)`

B

`11.2 "kms"^(-1)`

C

`11.2 "kms"^(-1)`

D

`11.2/2` m/s

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    AAKASH SERIES|Exercise VERY SHORT ANSWER TYPE QUESTIONS|55 Videos

  • GRAVITATION

    AAKASH SERIES|Exercise NUMERICAL EXERCISE (LEVEL - 1)|19 Videos

  • GRAVITATION

    AAKASH SERIES|Exercise Exercise-II|78 Videos

  • GAUSS.S LAW

    AAKASH SERIES|Exercise PROBLEMS (LEVEL - II)|12 Videos

  • GRAVITATIONAL

    AAKASH SERIES|Exercise EXERCISE -3|154 Videos

Similar Questions

Explore conceptually related problems

The escape velocity of a body from the surface of the earth is nearly

The escape velocity for a body projected vertically upwards from the surface of earth is 11kms^(-1) . If the same body is projected at an angle of 45^@ with the vertical , the escape velocity will be

Calculate the escape velocity of a body from the Earth's surface.

AAKASH SERIES-GRAVITATION-Practice Exercise
  1. If .g. is acceleration due to gravity on the earth.s surface, then the...

    Text Solution

    |

  2. The gravitational potential at centre of earth is

    Text Solution

    |

  3. Two particles each of mass 1kg are seperated by a distance of 1m in a ...

    Text Solution

    |

  4. The orbiting time .T. of a surface satellite is given by the relation

    Text Solution

    |

  5. An earth satellite is revolving in a circular orbit of radius 7000km. ...

    Text Solution

    |

  6. These orbital speed of satellite revolving very close to earth

    Text Solution

    |

  7. The escape velocity of a body depends upon its mass .m. as

    Text Solution

    |

  8. A satellite is revolving near the earth's surface, Its orbit velocity ...

    Text Solution

    |

  9. An artificial satellite moving in a circular orbit around the earth ha...

    Text Solution

    |

  10. The K.E. of a satellite is 2MJ. Its total energy is

    Text Solution

    |

  11. The escape velocity of a projectile from the earth.s surface is given ...

    Text Solution

    |

  12. The relation between the escape velocity ve and orbital velocity v0 is...

    Text Solution

    |

  13. Two satellites are at heights h1, h2. The ratio of their orbital angul...

    Text Solution

    |

  14. The KE of a satellite in its orbit around the earth is E. The KE of th...

    Text Solution

    |

  15. For a satellite to attain escape velocity, the percentage increase in ...

    Text Solution

    |

  16. The escape velocity of a body of mass 1kg when projected from the surf...

    Text Solution

    |

  17. The mass of earth is 9 times of that of Mars. The radius of the earth ...

    Text Solution

    |

  18. The escape velocities on the surface of two planets of masses m1 and m...

    Text Solution

    |

  19. If the escape velocity on the earth.s surface is 11.2 "kms"^(-1) , its...

    Text Solution

    |

  20. The escape velocity on a planet is v. If the radius of the planet cont...

    Text Solution

    |