SOLAR SYSTEM

Detailed explanation-1: -The gravitational force between the Earth and satellite is the centripetal force of the circular motion.

Detailed explanation-2: -When a satellite is in circular orbit, gravity is the only force acting on it, which means that the centripetal force and gravity must be equal: Fc = Fg .

Detailed explanation-3: -The two forces are equal in magnitude and opposite in direction. The centrifugal force does not act on the body in motion; the only force acting on the body in motion is the centripetal force. The centrifugal force acts on the source of the centripetal force to displace it radially from the center of the path.