That said, a diagram included in the Nave explanation of Newton's laws helps to clarify that which is meant by the above equation. A man is shown swinging a golf club into a golf ball in one image and in the next image, he is shown swinging the club into moving truck. We take as a primary understanding from these images that the mass of the object struck will have a direct bearing on the force required to accelerate it. At an identical force, the man's swing might drive the golf ball several hundred yards while perhaps only denting the moving truck. It was supplemented even further by the Third Law of Motion that every action has an equal and opposite reaction. This is proceeded from the initial assumption that force is created by the interaction between two bodies. Newton would express the idea that the mutual effects of two objects acting upon one another will be proportional in scale, impacted by the conditions of the Second Law where mass will play a role in the actual size of an 'equal reaction.' The 'opposite' aspect of this reaction is intended to mean the trajectory of an object or actor following intersection. This is clarified in Motte's (1729) highly regarded translation of Newton's Principia (1687), where it is indicated that "whatever draws or presses another is as much drawn or pressed by that other. If you press a stone with your finger, the finger is also pressed by the stone. If a horse draws a stone tied to a rope, the horse...

Looking back to the work of Ptolemy, Galileo, Bacon, Copernicus and others, it is clear that Newton word begin his work on the shoulders of giants. Remarkably, these principles would be the last of his major works in the field of physics. It was perhaps the enormity of this accomplishment combined with the mental strain of his works and public conflicts, that saw him begin to turn away from such work thereafter. Newton would live to 1727, but the remainder of his life would be devoted to public service, which he pursued with equal vigor to that which made him a revolutionary physicist. Serving out his life to England as head of the nation's mint and as a member of Parliament, Newton was irreproachably appreciated both in his lifetime and in the centuries hence, where these principles have invoked no small amount or revelation in those to come after him.
Works Cited:

Casco, M. (1999). Newton's Laws of Motion. The M. Casco Learning Center. Online at .

Motte, A. (trans.). (1729). Axioms or Laws of Motion. Isaac Newton's Principia 1687.

Online at http://gravitee.tripod.com/axioms.htm

Nave, R. (2000). Newton's Laws. Hyperphysics. Online at http://hyperphysics.phy-

astr.gsu.edu/HBASE/newt.html