An Initially Installed Flywheel Can Store 10⁶ J of Kinetic

question 39

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 395 rad/s,what maximum energy can be stored?

• A) 1.73E+6 J
• B) 1.92E+3 J
• C) 1.16E+5 J
• D) 1.00E+6 J

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