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3) A pool ball (solid sphere, I = 2/5 mr?) of mass m and radius / slides without rolling at 10 m/s. After a few seconds, it is rolling without slipping. Assuming no mechanical energy is lost, find its final speed once it is rolling. a. Start by using conservation of mechanical energy. What types of energy are present in the initial and final situations? Set the initial and final energies equal. b. Use the appropriate constraints to replace terms like / and @ in your equation from part a. Once you've done this, you will be able to solve for the final speed