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Physics lab report 12; Conservation of Angular Momentum

# Physics lab report 12; Conservation of Angular Momentum -...

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Alexander Hyatt Physics Lab124-021 April 18, 2007 Abstract In this lab experiment, we examined the motion of rotating bodies using the principle of conservation of angular momentum. Data from the previous experiment was used for this experiment. The experimental value found in the first exercise was If/Ii, Final moment of inertia divided by Initial moment of inertia, which was then tested verses our measured values to give us a percent difference. The second exercise found an experimental value for Mp, Mass of the point mass, which was also tested against the measured Mp to give a percent difference. Experiment Table 1 Data Table 1: Exercise 1 Moment of inertia of solid disk, Id = 8.96x10^-3 kgm^2 Initial moment of inertia of hollow cylinder, Ic = 5.019x10^-3 kgm^2 Initial moment of inertia of the system, Ii = 8.96x10^-3 kgm^2 Final moment of inertia of the system, If = 1.397x10^-2 kgm^2 Initial rotational speed, wi Final rotational speed, wf (rad/s) (rad/s) 15.376 11.42 18.193 14.71 13.421 11.054 19.32 16.83 14.132 10.61 18.519 13.07 21.956 17.93 24.856 19.77 12.497 9.821 16.77 13.501 The value to be found in Exercise 1 was If/Ii. This value is the slope of the graph of wf vs. wi, with wf being graphed as the x, and wi as the y.

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