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Friction Lab Report

Category: Physics Pages: 4 Type: Lab Report Level: Undergraduate
Theory: The variables to be used in the experiment and their explanation involves F used to show the force, m used to show the mass being used and a used to show the acceleration of the object. The variables used by Newton’s lay emphasis on the net force used exerted on the experiment in question. The relationship between force and motion was initially discussed by Aristotle (384-332B.C). He proposed that the natural state of an object was during rest, and force was required to put an object into motion, therefore, a continuous force was necessary to keep the body in motion. Galileo Galilei (1564-1642) argued that a body at rest is a unique case of a more broad case of constant motion. He noted that in the absence of friction acting on a body to slow it down, the body might continue to move in a straight line forever. He proposed that bodies remain at rest or in a state of constant motion unless an external force acts on them to change this motion. Frictional force is a force unlike other forces which accelerate or slows down a moving body (Lerner & Lawrence, page 51). Isaac Newton (1642-1727) sanctified the relationship between force and motion by proposing that the acceleration of a body is directly proportional to the net force acting on it and inversely proportional to the mass of the body. This law is summarized by the formula F=ma which is verified quantitatively in this experiment. Work done i.e. physical work defined in terms of physical quantities is expressed as a product of positional change multiplied by the component of force Fx in the displacement direction dx. W = Fx ?x = F?xcos? Where ? is the angle between the direction of displacement and the direction of force. This relationship can be written in the vector dot product form W = F??x The