11th Class Physics Gravitation / गुरुत्वाकर्षण

  • question_answer 19)
    A satellite orbits the earth at a height of 400 km above the surface. How much energy must be expended to rocket the satellite out of the gravitational influence of earth ? Mass of the satellite is 200 kg, mass of the earth = radius of the earth   

    Answer:

    Total energy of orbiting satellite at a height h                                                                                                                                                                                Energy expended to rocket the satellite out of the earth's gravitational field                                               = - (total energy of the orbiting satellite)                                                                                 


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