Home
Class 11
PHYSICS
The kinetic energy needed to project a b...

The kinetic energy needed to project a body of mass m from the earth's surface to infinity is

A

`1/4mgR`

B

`1/2mgR`

C

`mgR`

D

`2mgR`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

The kinetic energy needed to project a body of mass m from the eath surface (radus R) to infinity is

The kinetic energy needed to project a body of mass m from the earth surface (radius R) to infinity is

The kinetic energy needed to project a body of mass m from the surface of the earth to infinity is

The energy required to remove a body of mass m from earth's surfac is/are equal to

What is the work done in shifting a body of mass m=5okg slowly from the earth's surface to infinity?

" The potential energy of a body of mass "m" on the surface of earth is "

The gravitational potential energy of body of mass 'm' at the earth's surface mgR_(e) . Its gravitational potential energy at a height R_(e) fromt the earth's surface will be (here R_(e) is the radius of the earth)

HC VERMA-GRAVITATION-Objective 1
  1. A acceleration of moon with respect to earth is 0.0027 ms^-2 and the a...

    Text Solution

    |

  2. The acceleration of the moon just before it strikes the earth in the p...

    Text Solution

    |

  3. Suppose the acceleratio due to gravity at thth's surface is 10ms^-2 an...

    Text Solution

    |

  4. Consider a planet in some solar system which has a mass double the mas...

    Text Solution

    |

  5. If the acceleration due to gravity at the surface of the earth is g, t...

    Text Solution

    |

  6. A person brings a mass of 1 kg from infinity to a point . Initally the...

    Text Solution

    |

  7. Let V and E represent the gravitational potential and field at a dista...

    Text Solution

    |

  8. Let V and E represent the gravitational potential and field at a dista...

    Text Solution

    |

  9. Take the effect of bulging of earth and its rotation in account. Consi...

    Text Solution

    |

  10. The time period of an earth satelite in circular orbit is independent ...

    Text Solution

    |

  11. The magnitude of gravitational potential energy of the moon earth sys...

    Text Solution

    |

  12. Figure shows the elipticla path of a planet about the sun. The two sha...

    Text Solution

    |

  13. A person sitting in a chair in a satellite feels weightless because

    Text Solution

    |

  14. A body is suspended from a spring balance kept in a satellite. The rea...

    Text Solution

    |

  15. The kinetic energy needed to project a body of mass m from the earth's...

    Text Solution

    |

  16. A particle is kept at rest at a distance R (earth's radius) above the ...

    Text Solution

    |

  17. A satellite is orbiting the earth close to its surface. A particle is ...

    Text Solution

    |