Home
Class 11
PHYSICS
Two objectes of mass m and 4m are at res...

Two objectes of mass m and 4m are at rest at and infinite seperation. They move towards each other under mutual gravitational attraction. If G is the universal gravitational constant. Then at seperation r

Text Solution

Verified by Experts

The masses involved are small. So the force of attraction is very small to cause any acceleration . The force of attraction between two 1 kg masses separated by 1m distance is only `6.67 xx 10^(-11) N`.
Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    ICSE|Exercise LONG ANSWER QUESTIONS|13 Videos

  • GRAVITATION

    ICSE|Exercise SHORT ANSWER QUESTIONS|27 Videos

  • GRAVITATION

    ICSE|Exercise ADDITIONAL SOLVED PROBLEMS|15 Videos

  • FRICTION

    ICSE|Exercise Selected problems|30 Videos

  • INTERNAL ENERGY

    ICSE|Exercise SELECTED PROBLEMS (FROM HEAT ENGINES)|21 Videos

Similar Questions

Explore conceptually related problems

Two objects of masses m and 4m are at rest at an infinite separation. They move towards each other under mutual gravitational attraction. If G is the universal gravitaitonal constant, then at separation r

Two particles of masses m and M are initially at rest at an infinite distance apart. They move towards each other and gain speeds due to gravitational attraction. Find their speeds when the separation between the masses becomes equal to d.

When two blocks connected by a spring move towards each other under mutual interaction

When two blocks connected by a spring move towards each other under mutual interaction,

Two bodies of mass m_(1) and m_(2) are initially at rest placed infinite distance apart. They are then allowed to move towards each other under mutual gravitational attaction. Show that their relative velocity of approach at separation r betweeen them is v=sqrt(2G(m_(1)+m_(2)))/(r)

Two particles of mass m and M are initialljy at rest at infinite distance. Find their relative velocity of approach due to gravitational attraction when d is their separation at any instant

Two particles of masses 4 kg and 6 kg are at rest separated by 20 m. If they move towards each other under mutual force of attraction, the position of the point where they meet is

Two particles of masses 2 kg and 3 kg are at rest separated by 10 m. If they move towards each other under mutual force of attraction, the position of the point where they meet is

A double star is a system of two stars of masses m and 2m , rotating about their centre of mass only under their mutual gravitational attraction. If r is the separation between these two stars then their time period of rotation about their centre of mass will be proportional to

STATEMENT-1 : Two bodies of mass M and 2M released from rest and they move towards each other due to their mutual gravitational force of attraction and collide at mid point. STATEMENT-2 : If the total mechanical energy of a body is zero than its linear momentum is necessarily non zero at any point other than reference point. STATEMENT-3 : The linear momentum of the bob of a simple pendulum suspended by the roof of a car accelerating on a horizontal road increases due to tension in the string of the pendulum.

ICSE-GRAVITATION-CONCEPTUAL SHORT ANSWER QUESTIONS WITH ANSWERS
  1. Define gravitational constant G.

    Text Solution

    |

  2. Two objectes of mass m and 4m are at rest at and infinite seperation. ...

    Text Solution

    |

  3. A body is taken from equator to pole. What happens to (1) its mass ( 2...

    Text Solution

    |

  4. What will happen to the weight of a body at the equator if earth stops...

    Text Solution

    |

  5. The mass of a body is less in a mine. Is it true?

    Text Solution

    |

  6. What is the height of a synchronous satellite?

    Text Solution

    |

  7. Define gravitational potential and gravitational potential energy.

    Text Solution

    |

  8. A satellite needs no fuel to move round a planet in a stable orbit. Wh...

    Text Solution

    |

  9. What is the maximum value of gravitational potential? Where ?

    Text Solution

    |

  10. Why earth does not fall towards sun due to its attrraction?

    Text Solution

    |

  11. A body is taken to a height equal to radius of earth and then to a dep...

    Text Solution

    |

  12. The space rockets are launched from west to east. Why?

    Text Solution

    |

  13. Explain the reason of weightlessness inside a satellite.

    Text Solution

    |

  14. Explain why (a) there is no atmosphere on moon (b) there is fall i...

    Text Solution

    |

  15. Gravitational force is weak force but still it is considered the most ...

    Text Solution

    |

  16. Do the forces of friction and other contact forces arises due to gravi...

    Text Solution

    |

  17. We can shield a charge from electric fields by putting it inside a hol...

    Text Solution

    |

  18. An astronaut inside a small spaceship orbitting around the earth canno...

    Text Solution

    |

  19. If you compare the gravitational force on the earth due to the sun to ...

    Text Solution

    |

  20. A comet orbits the sun in a highly elliptical orbit. Which of the foll...

    Text Solution

    |