Lab One - Lab One Rotational Kinetic Energy and Angular...

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Lab One Rotational Kinetic Energy and Angular Momentum Purpose : In this lab, our goal is to experimentally verify the conservation of energy involving rotational kinetic energy and to observe collision between two disks so that we can test for the conservation of angular momentum. Also, our goal is to be able to measure changes during rotational collisions by using the data collected on the acceleration. Data and Calculations: Mass of Hanging Mass and Index Card .2015 ± .0001 kilograms Diameter of Largest Step Pulley .0500 ± .0001 meters Part One: Trial Acceleration (m/s 2 ) 1 .15244 2 .1555 3 .1608 Average Acceleration .15625m/s 2 Rotational Inertia .0078 kg-m 2 Graph attached for Trial One Part Two: see graphs attached Part Three : Mass of Auxiliary Platter .9226 ± .0001 kilograms Radius of Auxiliary Platter .205 ± .0005 meters Trial Number Velocity Slope (rad/s 2 ) Intercept (rad/s) Collision Time (s) 1 Initial .5006 7.626 T i =2.30 T f =2.70 T=2.50 Final .6632 4.879 2 Initial .8551 9.216 T i =2.65 T f =3.05 T=2.85 Final .2496 3.902 3 Initial 1.558 10.91 T i =2.85 T f =3.20 T=3.025 Final .5872 5.211 **all slopes had negative values indicating that the mass was falling down… Graph attached for Trial Three
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Rotational Inertia = - I ga 1mr2 Acceleration =- , …. A 2a a value found from graph data in experiment
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This note was uploaded on 04/29/2008 for the course PHYS 1212 taught by Professor Zink during the Spring '08 term at Denver.

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Lab One - Lab One Rotational Kinetic Energy and Angular...

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