Home
Class 9
PHYSICS
The acceleration due to gravity near the...

The acceleration due to gravity near the earth's surface is `9.8 m//s^2`, and the earth's radius is 6,400 km.From this data calculate the mass of the earth. Use any universal constant if required.

Text Solution

Verified by Experts

`6.02xx10^24 kg`
Promotional Banner

Topper's Solved these Questions

  • FORCE AND ACCELERATION

    HC VERMA|Exercise QUESTION BANK |52 Videos
  • MEASUREMENTS

    HC VERMA|Exercise QUESTION BANK |2 Videos

Similar Questions

Explore conceptually related problems

Calculate the value of acceleration due to gravity at a point a. 5.0 km above the earth's surface and b. 5.0 km below the earth's surface. Radius of earth =6400 km and the value of g at the surface of the earth is 9.80 ms^2

Acceleration due to gravity on the surface of the Earth is 9.8 m s^(-2) . Find its new vallue if both the radius and mass increase by 20%.

The acceleration due to gravity'g' for objects on or near the surface of earth is related to the universal gravitational constant 'G' as ('M' is the mass of the earth and 'R' is its radius):

If the acceleration due to gravity on the surface of the earth is 9.8m//s^(2), what will be the acceleration due to gravity on the surface of a planet whose mass and radius both are two times the corresponding quantities for the earth ?

If R is the radius of the earth and g the acceleration due to gravity on the earth’s surface, the mean density of the earth is

At what altitude will the acceleration due to gravity be 25% of that at the earth’s surface (given radius of earth is R) ?

HC VERMA-GRAVITATION-QUESTION BANK
  1. Calculate the gravitational force between a 10 -kg ball and a 20-kg ba...

    Text Solution

    |

  2. Three balls A, B and C are kept in a straight line. The separation be...

    Text Solution

    |

  3. Three balls A, B and C are kept in a straight line. The separation be...

    Text Solution

    |

  4. Three balls A, B and C are kept in a straight line. The separation be...

    Text Solution

    |

  5. The acceleration due to gravity near the earth's surface is 9.8 m//s^2...

    Text Solution

    |

  6. Two particles of mass 200 g each are placed at a separation of 10 cm. ...

    Text Solution

    |

  7. A particle weighs 120 N on the surface of the earth. At what height ab...

    Text Solution

    |

  8. Suppose the earth shrinks such that its radius decreases to half the p...

    Text Solution

    |

  9. Calculate the value of the acceleration due to gravity at a place 3,20...

    Text Solution

    |

  10. The acceleration due to gravity at a place is 0.2 m//s^2. Find the hei...

    Text Solution

    |

  11. As one moves to a place 3,200 km above the earth's surface, the accele...

    Text Solution

    |

  12. A ball is dropped from a cliff. Find its speed 2 s after it is dropped...

    Text Solution

    |

  13. A ball is dropped from a cliff. Find its speed when it has fallen thro...

    Text Solution

    |

  14. A ball thrown upwards takes 4 s to reach the maximum height. Find the ...

    Text Solution

    |

  15. A stone thrown upwards attains a maximum height of 19.6 m. Find the ve...

    Text Solution

    |

  16. A wicket keeping glove is dropped from a height of 40 m and simultaneo...

    Text Solution

    |

  17. A boy on a 78.4-m-high cliff drops a stone. One second later, he throw...

    Text Solution

    |