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Question 6241
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Gravitation: Gravitational PE MCQ

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Gravitational PEMediumQuestion 6241

Question

Total energy of satellite in circular orbit:
  1. A
    GMm/2r
  2. B
    −GMm/2r
    Correct
  3. C
    −GMm/r
  4. D
    0

Correct answer

−GMm/2r

Explanation

KE = GMm/2r, PE = −GMm/r. Total E = KE + PE = GMm/2r − GMm/r = −GMm/2r.

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