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JEE Main Physics question

PhysicsGravitationJEE Main

Two satellites and revolve around a planet in coplanar circular orbits in the same sense. Their periods of revolution are 1 hour and 8 hours respectively. The radius of the orbit of is km. When is closest to , the angular speed of as observed by an astronaut on is rad/s.

Answer: 0.29

Solution

By Kepler's third law, km m. Orbital speeds: , . When is closest to

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Question ID VK-154804