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NEET2010PhysicsGravitationActual

The radii of circular orbits of two satellites A and B of the earth are 4 R and R , respectively. If the speed of satellite A is 3 v , then the speed of satellite B will be

Options

  1. A3 y / 4
  2. B6 v
  3. C12 y
  4. D3 v / 2

Correct answer

B. 6 v

Step-by-step solution

aligned & Orbital velocity of satellite v = GM r & array ll & v _ A v _ B = r _ B r _ A = R 4 R = 1 2 & v _ A v _ B = 3 v v _ B = 1 2 & v _ B =6 v array aligned

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