The angular momentum of a flywheel having a rotational inertia of 0.140 kgm2 about its central axis decreases from 3.00 to 0.800 kgm2/s in 1.50s. a. What is the average torque acting on the flywheel about its central axis during this period. Use a signed number and Assume positive is the direction of motion of the flywheel. Use the rotational version of the impulse momentum theorem. b. Assuming a constant angular acceleration, through what angle does the flywheel turn? (This takes a bit of work. Determine α and ω based upon givens and your calculation of τ then use rotational version of kinematics equations.) c. How much work is done on the wheel? (Use the correct sign.) Use Work = torque x angular displacement. d. What is the power transfer experienced by the wheel (assume positive).

The angular momentum of a flywheel having a rotational inertia of 0.140 kgm2 about its central axis decreases from 3.00 to 0.800 kgm2/s in 1.50s. a. What is the average torque acting on the flywheel about its central axis during this period. Use a signed number and Assume positive is the direction of motion of the flywheel. Use the rotational version of the impulse momentum theorem. b. Assuming a constant angular acceleration, through what angle does the flywheel turn? (This takes a bit of work. Determine α and ω based upon givens and your calculation of τ then use rotational version of kinematics equations.) c. How much work is done on the wheel? (Use the correct sign.) Use Work = torque x angular displacement. d. What is the power transfer experienced by the wheel (assume positive).

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