Home
Class 11
PHYSICS
A satellite of small mass burns during i...

A satellite of small mass burns during its descent and not during ascent. Why ?

Text Solution

Verified by Experts

The speed of a satellite during descent is much larger than that during its ascent. We know that the air resistance is directly proportional to the velocity of object moving in air. Therefore more heat is produced during descent of satellite than during its ascent. Due to it, the satellite burns up during descent.
Promotional Banner

Topper's Solved these Questions

  • GRAVIATION

    PRADEEP|Exercise VERY SHORT ANS. QUESTIONS II.|1 Videos

  • GRAVIATION

    PRADEEP|Exercise VERY SHORT ANS. QUESTIONS III.|1 Videos

  • GRAVIATION

    PRADEEP|Exercise VERY SHORT ANS. QUESTIONS I.|1 Videos

  • BEHAVIOUR OF PERFECT GAS & KINETIC THEORY

    PRADEEP|Exercise Assertion - Reason Type questions|14 Videos

  • KINEMATICS

    PRADEEP|Exercise 1 NCERT Comprehension|4 Videos

Similar Questions

Explore conceptually related problems

The decay of mass during nuclear fission and fusion are:

Why does the temperature of a substance remain constant during its melting point or boiling point ?

When a mountaineer who eats food, gets warm a lot during a climb and does a lot of mechanical work in raising himself upwards. When he descents, again he also gets warm during descent. Is the source of this energy the same as during the ascent.

A small satellite of mass m is going around a planet in a circular orbit of radius r. Write the kinetic energy of the satellite if its angular momentum about the centre of the lanet is J.

No rupture and friction occur in water column of vessels and tracheids during ascent of sap. It is due to

PRADEEP-GRAVIATION-VERY SHORT ANS. QUESTIONS
  1. An artifical satellite revolves in the orbit around the Earth without ...

    Text Solution

    |

  2. Can we determine the gravitational mass of a body inside an artificial...

    Text Solution

    |

  3. An artificial satellite is revolving around the Earth at a height 400 ...

    Text Solution

    |

  4. A satellite revolving around Earth loses height. How will its time per...

    Text Solution

    |

  5. Two artificial satellites one close to the surface and the other away,...

    Text Solution

    |

  6. Should the speed of two artificial satellites of the earth having the ...

    Text Solution

    |

  7. Which has longer period of revolution, a satellite revolving close or ...

    Text Solution

    |

  8. The astronauts in a satellite orbiting the Earth feel weightlessness. ...

    Text Solution

    |

  9. What is the sense of roatation of stationary satellite around the Eart...

    Text Solution

    |

  10. Assertion: The time period of geostationary satellite is 24 hrs. Rea...

    Text Solution

    |

  11. If a satellites is revolving close to a planet of density rho with per...

    Text Solution

    |

  12. Two satellites A and B are orbiting around the earth in ciruclar orbit...

    Text Solution

    |

  13. If the Earth's satellite is put into an orbit at a height where resist...

    Text Solution

    |

  14. Does a rocket really need the escape speed of 11.2 km//s initially to ...

    Text Solution

    |

  15. For a satellite, escape speed is 11 km s^(-1). If the satellite is lau...

    Text Solution

    |

  16. What is the escape velocity of the object, if.the magnitude of the pot...

    Text Solution

    |

  17. Show that Moon would depart for even if its speed were incresed by 42%...

    Text Solution

    |

  18. A satellite of small mass burns during its descent and not during asce...

    Text Solution

    |

  19. Assertion: A person sitting in an artificial satellite revolving aroun...

    Text Solution

    |

  20. Lighter gases like H2, He, etc. are rare in the atmosphere of the eart...

    Text Solution

    |