Home
Class 11
PHYSICS
The gravitational force acting on a rock...

The gravitational force acting on a rocket at a height h from the earth's surface is `1/ 3` rd of the force acting on a body at sea level. What is relation between h and `R_e` (radius of the earth) ?

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • FLUIDS AT REST

    SL ARORA|Exercise Problem|19 Videos
  • FLUIDS AT REST

    SL ARORA|Exercise Problem for self practice|69 Videos
  • FLUIDS IN MOTION

    SL ARORA|Exercise All Questions|117 Videos

Similar Questions

Explore conceptually related problems

The value of gravitational accelerationg at a height h above the earth's surface is then (R = radius of earth)

If the potential energy of a body at a height h from the surface of the earth is (mgR)/(2) , then

A body weight 45 N on the surface of the earth. What is the gravitational force acting on it due to the earth at a height equal to half the radius of the earth ?

The value of gravitational acceleration 'g' at a height 'h' above the earth's surface is (g)/(4) , then (R = __________ ) (where R = radius of the earth)

Gravitational potential at a height R from the surface of the earth will be [Take M = mass of the earth, R = radius of the earth]

The kinetic energy needed to project a body of mass m from the earth's surface to infinity is (R is radius of the earth, g is gravitational acceleration on the surface of the earth)

Find the gravitational potential energy of a body of mass 10 kg when it is at a height of 6400 km from the earth's surface. [Given : mass of the earth and radius of the earth.]

A body weights 72 N on the surface of the earth. What is the gravitational force acting on it due to the earth at a height to half the radius of the earth from the surface ?

A body weighs 63 N on the surface of the earth. What is the gravitational force on it due to the earth at a height equal to half the radius of the earth ?

SL ARORA-FLUIDS AT REST-Problem for self practice
  1. The gravitational force acting on a rocket at a height h from the eart...

    Text Solution

    |

  2. A force of 40 N is applied on a nail , whose tip has an area of cross-...

    Text Solution

    |

  3. Atmospheric pressure is 1.01 xx 10^(5) Pa. How large a force does the ...

    Text Solution

    |

  4. The force on a Phonograph needle is 1.2 N. the point has a circular cr...

    Text Solution

    |

  5. A cylinderical vessel contaning liquid is closed by a smooth piston of...

    Text Solution

    |

  6. The cross-section of two piston in hydraulic press are 2cm^(2) "and" 1...

    Text Solution

    |

  7. The average mass that must be lifted by a hydraulic press is 80 "kg".I...

    Text Solution

    |

  8. In a hydraulic press used for compressing cotton the area of the pisto...

    Text Solution

    |

  9. An automobile sack is lifted by a hydraulic jack that consists of two ...

    Text Solution

    |

  10. What is the minimum pressure required to force blood from the heart to...

    Text Solution

    |

  11. A column of water 40 cm height supports a 30 cm column of an unknown l...

    Text Solution

    |

  12. If the water pressure gauge shows the pressure at ground floor to be 2...

    Text Solution

    |

  13. A cylinderical jar of cross-sectional area of 50 cm^(2) is filled with...

    Text Solution

    |

  14. Water is filled in a flask upto a height of 20cm. The bottom of the fl...

    Text Solution

    |

  15. The density of asir ner earth's surface is 1.3kgm^-3 and the atmospher...

    Text Solution

    |

  16. A vertical U-tube of uniform inner cross-section contains mercury in ...

    Text Solution

    |

  17. Two liquids of specific gravity 1.2 "and" 0.84 are poured into the l...

    Text Solution

    |

  18. The area of cross-section of the wider tube shown in fig., is 800cm^(2...

    Text Solution

    |

  19. A barometer kept in an elevator accelerating upwards reads 76 cm of Hg...

    Text Solution

    |

  20. How much will a body of 70 N weight in water if it displaces 20 ml of...

    Text Solution

    |

  21. A solid weighs 6 kg in air. If its density is 2000 "kg" m^(3) what wil...

    Text Solution

    |