At what speed is the flywheel spinning

Reference no: EM1392429

Q. A high-speed flywheel in a motor is spinning at 450 rpm when a power failure suddenly occurs. The flywheel has mass 36.0 kg and diameter 70.0 cm. The power is off for 34.0 s and throughout this time the flywheel slows as a result of friction in its axle bearings. Throughout the time the power is off, the flywheel makes 180 complete revolutions.

At what speed is the flywheel spinning when the power comes back on?

Reference no: EM1392429

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