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Unformatted text preview: Pat Popovits PHY121IN Stewart MW Ballistic Motion Lab I. Introduction In this experiment we are trying to examine Newton’s 2 nd law which tells us that net force exerted on an object, the mass of an object, and it’s acceleration are related by the formula F = ma . Two experiments will be done in order to do this: one in which the accelerating force is varied with a constant mass, and one in which the accelerating force remains constant while the mass varies. Our calculated theoretical values will then be compared to the values calculated using measured data. Lastly, it is important to note that the unbalanced force is the weight of the hanging mass (mg), while the accelerated mass is the total of the hanging and rolling masses. II. Method Materials used : weight set, acceleration cart, hangar and cord, paired photogate timers, pulley, pulley w/ clamp, meter stick 1. We marked off the starting and ending points of the cart 2. The distance was measured and recorded 3. A flag was secured higher than the rest of the cart that can interrupt the beam of the photogates 4. Use the paired photogates in pulse mode to measure the amount of time it takes for the cart to roll to the end (Three measurements for each combination of weights Part 1: Constant Force 1. The mass on the string will remain constant while the mass in the in the cart will vary 2. Our hangar mass was a constant weight of 105g while six different cart masses...
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