>As a layman, this sounds very much like Newton's first law: An object in motion stays in motion with the same speed and in the same direction unless acted upon

>As a layman, this sounds very much like Newton's first law: An object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. Many equations in physics are simply restatements of other laws showing the same relationship. For instance Coloumb's law for electromagnetic attraction [0], and Newton's law of gravitational attraction [1]. [0] http://home.fnal.gov/~cheung/rtes/RTESWeb/LQCD_site/objects/coulombslaw.png http://home.fnal.gov/~cheung/rtes/RTESWeb/LQCD_site/objects/... [1] https://kaiserscience.files.wordpress.com/2015/08/force-gravity.jpg https://kaiserscience.files.wordpress.com/2015/08/force-grav...