Flywheels are large, massive wheels used to store energy. They can be spun up slowly, then the wheel's energy can be released quickly to accomplish a task that demands high power. An industrial flywheel has a 1.9 m diameter and a mass of 220 kg Its maximum angular velocity is 1200 rpm.

The flywheel is disconnected from the motor and connected to a machine to which it will deliver energy. Half the energy stored in the flywheel is delivered in 2.0 s. What is the average power delivered to the machine?

(Please don't just tell me the answer, I want to work this through!)

Question

Flywheels are large, massive wheels used to store energy. They can be spun up slowly, then the wheel's energy can be released quickly to accomplish a task that demands high power. An industrial flywheel has a 1.9 m diameter and a mass of 220 kg Its maximum angular velocity is 1200 rpm.

The flywheel is disconnected from the motor and connected to a machine to which it will deliver energy. Half the energy stored in the flywheel is delivered in 2.0 s. What is the average power delivered to the machine?

(Please don't just tell me the answer, I want to work this through!)

anonymous · Answer

is the fly wheel uniform thru out?

anonymous · Answer

or is the mass on the circumference?

anonymous · Answer

It's uniform throughout.