What is the source of centripetal force that a planet requires to revolve around the sun ? On what factors does the force depend ?
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The motion of the planet around the earth is due to the centripetal force. This centripetal force is provided by the gravitational force between the planet and the sun.
This force depends on the mass of the sun and mass of the planet, and on the distance between sun and planet.
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The centripetal force required by a planet to remain in the orbit around the sun is provided by the gravitational force of attraction between the planet and the sun. The centripetal force (F) depends on the radius (r) of the planets orbit, mass (m) of the planet and orbital speed (v) of the planet
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