Mechanics 2 Coursework - Assumptions related to both the model and the experiment.
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Mechanics 2 Coursework Mechanics 2 Coursework Assumptions related to both the model and the experiment Assumptions that are made for both the model and the experiment: * The gravity, g, is taken to be 9.8ms-1 * The ball is taken to be a particle * The accuracy of the timing is subjective - the start and end times are based upon the testers' judgement. * Readings are taken from the bottom of the ball and not the centre. * The downward direction is taken to be positive, therefore any rebounds are negative. * Air resistance is not taken into account. * Values are taken to 2 d.p. Manipulating the model Firstly, a theoretical equation needs to be obtained linking e (the elasticity of the ball), h1 (the downward height) and h2 (the rebound height). This can be obtained using the equations of linear motion. When dropping the ball: s = h1 a = g u = 0 v = ? Using v2 = u2 + 2as v2 = 0...


