A Rotating Flywheel Can Be Used as a Method to Store

question 41

Multiple Choice

A rotating flywheel can be used as a method to store energy.If it is required that such a device be able to store up to a maximum of 1.00 ´ 10⁶ J when rotating at 400 rad/s,what moment of inertia is required?

• A)50 kg*m²
• B)25 kg*m²
• C)12.5 kg*m²
• D)6.3 kg*m²

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