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Gravitation — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsGravitation1 Mark
MCQ
A satellite is orbiting the earth close to its surface. A particle is to be projected from the satellite to just escape from the earth. The escape speed from the earth is $νe.$ Its speed with respect to the satellite$:$
  • A
    Will be less than $ν_e.$
  • B
    Will be more than $ν_e.$
  • C
    Will be equal to $ν_e.$
  • ✓
    Will depend on the direction of projection.
✓

Answer

Correct option: D.
Will depend on the direction of projection.
For example a body projected vertically requires less escape velocity than a body projected at an angle with the vertical.

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