A high-speed flywheel in a motor is spinning at 50 rads/sec when the power suddenly fails. The power is off for 40 seconds and the flywheel slows due to the friction in the axle. While the power is off, the flywheel makes 200 complete revolutions. What is the angular velocity of the flywheel when the power comes on?

Answer rating: 100% (QA)

To solve this problem we can use the principle of conservation of angular momentum When the power fa... View the full answer