I ask that you place the stake, kindling and match at a comfortable distance and read not expecting a unification theory but a simple catalyst fanning the heretical fires within. This paper attempts to explain Newton’s apple falling and stopping with a single equation.
A basic understanding of high school trigonometry and an attention span greater than that of a gnat is sufficient to follow all concepts in this paper. An understanding of calculus will help but is not essential to understand that treating a point as a sphere when calculating electrostatic force is simply not a good approximation.
I would suggest beginning with the Abstract and read sequentially through the sections.