What is the source of centripetal force that a planet requires to revolve around the sun? On what factors does that force depend ?
State the source of centripetal force that a planet requires to revolve around the sun. On what factors does that force depend? Suppose this force suddenly becomes zero, then in which direction will the planet begin to move if no other celestial body affects it?
Name the source of the centripetal force that the earth requires to revolve around the sun. Derive an expression for this force.