Newton's Second Law

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Newton’s Second Law 3/6/2014 Purpose The purpose of this experiment is to determine the acceleration of gravity using Newton’s second law. Equipment * Air track, used to place other equipment on to test. * Cart, used as the bigger mass in the experiment. * String, attached to the bigger and smaller masses. * Paper clip, used as a hanger for the smaller mass. * Weight set, used to alter the smaller mass. * Wood block, used to alter the angle of incline/decline of the track. * Meter stick, used to measure thickness of block and distance between supports on the track. * Smart pulley, used at the end of the track as a pulley system between the bigger and smaller masses. Principles The principles used in the experiment would be Newton’s Second Law, which says that the behavior of objects under a net force is Fnet=ma, and net force is the sum of all forces acting on an object, Fnet=F. The experiment also uses principles of Tension “T” and the force of gravity “Fg”, which is equal to 9.8 m/s². Procedure Part A * Take the mass of the cart: 253.0 g * Add a 10g weight to the 1.0 g paper clip, making smaller mass 11.0g * Record the slope of the line of run #1 after releasing the cart to the end of the track. (y = 0.355x + 0.119) * Repeat with another 10g weight, making smaller mass 21.0g * Record the slope of the line after run #2 (y = 0.672x + 0.155) * Repeat with another 10g weight, making smaller mass 31.0g * Record the slope of the line after run #3 (y = 0.966x + 0.268) * Repeat with another 10g weight, making smaller mass 41.0g * Record the slope of the line after run #4 (y = 1.27x + 0.135) * Repeat with another 10g weight, making smaller mass 51.0g * Record the slope of the line after run #5 (y = 1.46x + 0.294) * Calculate the acceleration for each run using a =

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