# Newton - Newton's Three Laws of Motion Let us begin our explanation of how Newton changed our understanding of the Universe by enumerating his

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Newton's Three Laws of Motion Let us begin our explanation of how Newton changed our understanding of the Universe by enumerating his Three Laws of Motion. Newton's First Law of Motion: I. Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it. This we recognize as essentially Galileo's concept of inertia, and this is often termed simply the "Law of Inertia". Newton's Second Law of Motion: II. The relationship between an object's mass m , its acceleration a, and the applied force F is F = ma . Acceleration and force are vectors (as indicated by their symbols being displayed in slant bold font); in this law the direction of the force vector is the same as the direction of the acceleration vector. This is the most powerful of Newton's three Laws, because it allows quantitative calculations of dynamics: how do velocities change when forces are applied. Notice the fundamental difference between Newton's 2nd Law and the dynamics

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## This note was uploaded on 12/04/2011 for the course ANT ANT2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.

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Newton - Newton's Three Laws of Motion Let us begin our explanation of how Newton changed our understanding of the Universe by enumerating his

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