Question
How is centripetal force provided in case of the following?
- Motion of planet around the sun,
- Motion of moon around the earth.
- Motion of an electron around the nucleus in an atom
Solution
- Gravitational force acting on the planet and the sun provides the necessary centripetal force.
- Force of gravity due to earth on the moon provides centripetal force.
- Electrostatic force attraction between the electron and the proton provides the necessary centripetal force
