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MHT CET 2026 (15 May, Shift 1) · Satellite Energy & Weightlessness

Satellite Energy & Weightlessness question from MHT CET 2026 (15 May, Shift 1)

Q1MHT CET 2026 · 15 MAY · SHIFT 1Medium

Satellite Energy & Weightlessness

The kinetic energy of a revolving satellite (mass mm) at a height equal to thrice the radius of the earth (RR) is (gg = acceleration due to gravity)

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Answer: (a)

  1. Orbit radius r=R+3R=4Rr = R + 3R = 4R.
  2. K=GMm2r=gR2m8RK = \frac{GMm}{2r} = \frac{gR^2 m}{8R} using GM=gR2GM = gR^2.
  3. K=mgR8K = \frac{mgR}{8}.
  4. So the answer is (a).
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