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Unformatted text preview: Run # Inertia, kg*m 2 Radius, r (m) distance, x (m) Velocity, m/s 1 0.484412049 2.03E-03 0.025 87.2 2.556144388 2 0.196608689 2.451669167 3 1.776452336 2.618876388 Average coefficient of friction 0.819157 7 Average Velocity (m/s) 2.54223 Standard Deviation of Velocity 0.084467 6 Solved Equations: =- -k mg a MaMg = (-)( + + ) v 2rx mg Mgk M m I 7. Conclusion After many calculations, I have found the average velocity of the sliding block is 2.54 m/s. Also, the average coefficient of friction is 0.819. This is off from the suggested value of 0.4. This could be due to the large variance in weights of the blocks. However, the first run was on track, while a coefficient of 0.48. There are many experiment uncertainties in this experiment. For example, the table is most likely unlevel, so the coefficient of friction will not be constant. Also, the block was not pulled at a constant rate, making the calculations somewhat off....
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