Derive Newton's inverse square law.

State Newton's inverse square law.

Newton's inverse square law is deduced from Kepler's ______ law of planetary motion.

State kepler's laws of planetary motion. How did newton guess inverse square law?

In Newton's inverse square law of gravitation had some dependence of radial distance other than r^(-2) which on of kepler's three laws of planetary motion would unchanged ?

Write the three laws given by Kepler. How did they help Newton to arrive at the inverse square law of gravity?

Name the forces which obey inverse square law.

Do cohesive and adhesive forces obey inverse square law?