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LAB 120

# LAB 120 - LAB 120 CONSERVATION OF AGULAR MOMENTUM Livia...

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LAB 120: CONSERVATION OF AGULAR MOMENTUM Livia Kuruvila Amy Patel Kunal Rana Vikram Ramkumar Dhruv Lad Phys 111A-001 December 2, 2010 Chiranjivi Lamsal

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Introduction: The objective of this lab was to prove that angular momentum is conserved in an inelastic collision. Angular momentum of a m with velocity is given by the equation L m =pd= mvd (d is the distance from the axis to the line of action, v is the velocity, m is the mass). The equation used when the body has a rotation inertia is given by the equation L A-A’ = Ιϖ . Once the ball rolls down the ramp its caught by the ball-catch in an inelastic collision. Once the ball, ball-catch, small pulley disk, and large aluminum disk rotates about the central axis, we are trying to prove that the total angular momentum, L, remains constant. In order to find the time taken for the collision we used the equation y=.5gt^2. In order to find the velocity we used the equation x=vt. In order to calculate the rotational inertia of the system we used the equation .5MR^2 + (1/12)ML^2 + M bc b^2+ Md^2 + .5Mr^2.
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