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NEETPhysicsGravitation

Consider the following statement for a satellite S moving in an elliptical orbit around the earth (mass of satellite is negligibly small compared to earth) I: The acc. of S is always towards earth. II : The total mechanical energy of (S ) varies periodically with time. III : The linear momentum of ' (S ) ' remain constant in magnitude. The correct sequence of true (( T ) ) and false (( F ) ) for the above statement i

Options

  1. ATTF
  2. BTFT
  3. CTFF
  4. DFFF

Correct answer

A. TTF

Step-by-step solution

I. Gravitational force on satellite due to earth acts always towards the centre of earth. II. Since distance of the satellite from the earth changes, then the total mechanical energy will be change. III. Since (v ) changes in magnitude & direction. ( ) Linear momentum is not conserved.

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