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Unformatted text preview: driving at the minimum highway speed of 40.0 mi/h, air drag and rolling friction dissipate energy at 10.0 kW.) PICTURE The kinetic energy is calculated directly from. SOLVE 1. The kinetic energy of rotation is Answer: 2. Calculate the moment of inertia of the hollow cylinder using an expression from Table 9-1 : Answer: 3. Convert to rad/s: Answer: 4. Substitute these values to find the kinetic energy: Answer: 5. Energy is dissipated at 10 kW at a speed of 40 mi/h. To find the energy dissipated during the 15-mi trip, we first need to find the time required for the trip: Answer: 6. The energy is dissipated at 10 kW for 1350 s. The total energy dissipated is Answer: 7. Is there enough energy stored in the flywheel? Answer:...
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