An Initially Installed Flywheel Can Store 10⁶ J of Kinetic

question 64

Multiple Choice

An initially installed flywheel can store 10⁶ J of kinetic energy when rotating at 300 rad/s.It is replaced by another flywheel of the same size but made of a stronger material.If its mass is the same as that of the original,and it is now capable of achieving a rotational speed of 425 rad/s,what maximum energy can be stored?

• A)2.01E+6 J
• B)1.66E+3 J
• C)1.73E+5 J
• D)1.00E+6 J

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