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Unformatted text preview: 9-11 ), where r i is the radial distance from the rotation axis to the particle of mass m i : Answer: 2. The masses m i and the distances r i are given: Answer: 3. Substitution gives the moment of inertia: Answer: 4. Using Equation 9-12 , solve for the kinetic energy: Answer: ( b ) 1. To find the kinetic energy of the i th particle, we must first find its speed: Answer: 2. The particles are all moving in circles of radius a . Find the speed of each particle: Answer: 3. Substitute into the Part-( b ) step-1 result: Answer: 4. Each particle has the same kinetic energy. Sum the kinetic energies to get the total: Answer: 5. Compare with the Part-( a ) result: Answer:...
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This note was uploaded on 11/29/2010 for the course PHYS 1301W taught by Professor Marshak during the Spring '08 term at Minnesota.
- Spring '08