Home
Class 11
PHYSICS
An artificial satellite orbiting the ear...

An artificial satellite orbiting the earth in very thin atmosphere loses its energy gradually due to dissipation against atmospheric resistance , however small .Why then does its speed increase progressively as it comes closer and closer the earth ?

Text Solution

Verified by Experts

As an artificial satellite gradually loses its energy due to dissipation against decreases rapidally . As a result , kinetic energy of satellite slightly increases . So its speed increases progressively .
Promotional Banner

Topper's Solved these Questions

  • WORK, ENERGY AND POWER

    KUMAR PRAKASHAN|Exercise SECTION - B Numericals (Numerical From .DARPAN. Based On Textbook)|15 Videos
  • WORK, ENERGY AND POWER

    KUMAR PRAKASHAN|Exercise SECTION - C Objective Questions (VSQs)|52 Videos
  • WORK, ENERGY AND POWER

    KUMAR PRAKASHAN|Exercise SECTION - B Numericals (Numerical From Textual Illustration)|29 Videos
  • WAVES

    KUMAR PRAKASHAN|Exercise SECTION-F (Questions From Module) (Sample questions for preparation of competitive exams)|23 Videos

Similar Questions

Explore conceptually related problems

When a satellite in a circular orbit around the earth enters the atmospheric region, it encounters small air resistance to its motion. Then

An artificial satellite moving in a circular orbit around the earth has a total energy E_(0) . Its potential energy is

An artificial satellite is moving in a circular orbit around the earth with a speed of equal to half the magnitude of escape velocity from earth. If the satellite is stopped suddenly in its orbit and allowed to fall freely on the earth. Find the speed with which it hits the surface of earth. Given, M=mass of earth & R =Radius of earth

A satellite moves around the earth in a circular orbit with speed v . If m is the mass of the satellite, its total energy is

A rocket is fired ‘vertically’ from the surface of mars with a speed of 2 km s^(–1) . If 20% of its initial energy is lost due to martian atmospheric resistance, how far will the rocket go from the surface of mars before returning to it ? Mass of mars = 6.4 xx 10^(23) kg, radius of mars = 3395 km, G = 6.67 xx 10^(-11) N m^(2) Kg^(-2) .

A satellite of mass m is in an elliptical orbit around the earth of mass M(M gt gt m) the speed of the satellite at its nearest point ot the earth (perigee) is sqrt((6GM)/(5R)) where R= its closest distance to the earth it is desired to transfer this satellite into a circular orbit around the earth of radius equal its largest distance from the earth. Find the increase in its speed to be imparted at the apogee (farthest point on the elliptical orbit).

An artificial satellite is moving in a circular orbit of radius 42,250 km. Calculate its speed if it takes 24 hour to revolve around the earth.

KUMAR PRAKASHAN-WORK, ENERGY AND POWER -SECTION - B Numericals (Numerical From Textual Exercise)
  1. The spring of a rocket in flight burns up due to friction .At whose ex...

    Text Solution

    |

  2. Comets move around the sun in highly elliptical orbits . The gravita...

    Text Solution

    |

  3. An artificial satellite orbiting the earth in very thin atmosphere lo...

    Text Solution

    |

  4. In figure (i) the man walks 2 m carrying a mass of 15 kg on his hands...

    Text Solution

    |

  5. When a conservative force does positive work on a body , the potential...

    Text Solution

    |

  6. Work done by a body against friction always results in a loss of its k...

    Text Solution

    |

  7. The rate of change of total momentum of a many -particle system is pro...

    Text Solution

    |

  8. In an inelastic collision of two bodies, the quantities which do not c...

    Text Solution

    |

  9. In an elastic collision of two bodies , the momentum and energy of eac...

    Text Solution

    |

  10. Total energy of a system is always conserved , no matter what internal...

    Text Solution

    |

  11. Work done in the motion of a body over a closed loop is zero for ever...

    Text Solution

    |

  12. In an elastic collision , the final kinetic energy is always less than...

    Text Solution

    |

  13. In an elastic collision of two bodies , the momentum and energy of eac...

    Text Solution

    |

  14. Explain the total linear momentum is conserved in an elastic collis...

    Text Solution

    |

  15. Practically, if 10kJ of energy is supplied to a device, how much energ...

    Text Solution

    |

  16. If the potential energy of two billiard balls depends only on the sepa...

    Text Solution

    |

  17. A body is initially at rest . It undergoes one - dimensional motion w...

    Text Solution

    |

  18. A body is moving indirectionally under the influence of a source of co...

    Text Solution

    |

  19. A body constrained to move along the z -axis of a coordinate system is...

    Text Solution

    |

  20. An electron and a proton are detected in a cosmic ray experiment , the...

    Text Solution

    |