Home
Class 12
PHYSICS
The gravitational force exerted by the s...

The gravitational force exerted by the sun on the moon is greater than that exerted by the earth on the moon. Why then does not the moon escape from the earth.

Text Solution

Verified by Experts

For the moon `V_e=sqrt(2) V_0V_e-V_o=sqrt(2)V_0-V_0=V_0(sqrt2-1)=V_0(1.414-1)=0.414V_0` To escape from the gravitational field of the earth, the moon should faster by41.4%
Promotional Banner

Topper's Solved these Questions

  • FRICTION

    MBD PUBLICATION|Exercise QUISTION BANK|72 Videos
  • KINETICS THEORY OF GASES

    MBD PUBLICATION|Exercise QUESTION BANK|264 Videos

Similar Questions

Explore conceptually related problems

The mass of the moon is 1//9 that of the earth. The value of the gravitational force of the earth on the moon is F newton. What is magnitude of the gravitational force of the moon on the earth.

The acceleration due to gravity on the moon is 1/6th that on the earth. If the earth and the moon are assumed to have same density, then what is radius of the moon?

what is the escape velocity of a body from the earth?

Apple falls from a tree due to gravity. State which is greater in magnitude-force exerted by earth on the apple or force exerted by apple on the earth.

What is the value of acceleration due to gravity on the surface of the moon ? Given that the mass of the moon is 1//80 times that of the earth and diameter of the moon is 1//4 times that of earth (g=9.8m//s^2) .

What is supplying energy to the moon to move round the earth ?

The value of escape speed from the surface of earth is

MBD PUBLICATION-GRAVITATION-QUESTION BANK
  1. An artificial satellite revolves it’s orbit around the earth without u...

    Text Solution

    |

  2. An artificial satellite revolves it’s orbit around the earth without u...

    Text Solution

    |

  3. The gravitational force exerted by the sun on the moon is greater than...

    Text Solution

    |

  4. Two wires of the same material have their lengths in the ratio 3:2 , d...

    Text Solution

    |

  5. A body is dropped from a height of 100m. At what height the velocity o...

    Text Solution

    |

  6. If an earth satellite is put in orbit at a height where resistance due...

    Text Solution

    |

  7. A cylindrical open water tank with a circular base is to be made out o...

    Text Solution

    |

  8. what is the escape velocity of a body from the earth?

    Text Solution

    |

  9. The gravitational field due to mass distribution is E=K/x^2 in the X d...

    Text Solution

    |

  10. Where the weight of a man is more ? at the surface of the earth or at ...

    Text Solution

    |

  11. What happens to the apparent weight of a body in upward direction

    Text Solution

    |

  12. what is greater? The attraction of earth for an apple or attraction of...

    Text Solution

    |

  13. The earth moving round the sun in a circular orbit is acted upon by a ...

    Text Solution

    |

  14. A wire of steel of radius r and length l breaks due to weight W .What ...

    Text Solution

    |

  15. Name the regions of the atmosphere where global warming and ozone depl...

    Text Solution

    |

  16. The gravitational force between two protons is attractive. Then the Co...

    Text Solution

    |

  17. Two equal balls having equal positive charges q coulombs are suspend...

    Text Solution

    |

  18. A person sitting in an artificial satellite revolving around the earth...

    Text Solution

    |

  19. Describe the various uses of geostationary satellite.

    Text Solution

    |

  20. Geostationary satellite appears unstable in space above a place in the...

    Text Solution

    |