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Angular Motion

# It is important to note that equation 48 is the

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Unformatted text preview: gular acceleration, and the proportionality constant is the moment of inertia. It is important to note that equation (48) is the rotational form of Newton’s Second law of motion. 11 3. References • • • • • • Fundamentals of Physics Extended 7th Edition by Halliday, Resnick and Walker. Wiley Publishing Elementary Classical Physics Volume 1 By Richard T. Weidner and Robert L. Sells. Allyn and Bacon publishing. Principles of Physics by Serway and Jewett. Brooks/Cole Publishing Physics: A World View 5th edition by Kirkpatrick and Francis. Brooks/Cole Publishing Physics 3rd edition by James S Walker. Prentice Hall Publishing. University Physics 8th edition by Young. Addison-Wesley Publishing 4. Experiment In the experiment that you will perform today, we will be dealing with constant angular acceleration and the net torque of a disk and ring. The rotational inertia of a uniform disk is 1 2 (49) where MD is the mass of the disk and R is its radius. The rotational inertia of a thick ring is 1 2 (50) where MR is the mass of the ring, Ri is the inner radius, and Ro is the outer radius. The total rotational inertia is 1 2 1 2 (51) Thus the torque for this experiment is 1 2 1 2 (52) When you are finding the torque using the mass, the angle is 90°, thus the torque is (53) This experiment will also find the angular displacement, velocity, and acceleration. Therefore you will use 1 2 (54) (55) The angular acceleration will first be measured and you will use that quantity to find the angular position and angular velocity. 12...
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