Question

13. Show that critical velocity of body revolving in a circular orbit very close to the
surface of planet of radius R and mean densitys 2R
$\sqrt{g\pi \div 3}$
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Answer 1

Answer:

Show that the critical velocity of a body revolving in a circular orbit very closed to the surface of planet of radius ' R ' and mean density ρ is Vc = 2 R √ [ (G ρ π ) / 3 ] The minimum velocity required to revolve in a circular orbit around a planet is called critical velocity.