An Initially Installed Flywheel Can Store 10⁶ J of Kinetic

question 23

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 lighter and stronger material.If its mass is half that of the original and it is now capable of achieving a rotational speed of 600 rad/s,what maximum energy can be stored?

• A)40 x 10⁵ J
• B)20 x 10⁵ J
• C)10 x 10⁵ J
• D)5.0 x 10⁵ J

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Definitions:

Real Withdrawals

The process of taking out funds from an investment or savings account, adjusted for the effects of inflation, to maintain the purchasing power of the money.

Annual Interest Rate

The percentage increase in the value of money due to interest, calculated on a yearly basis.

Amortize

The method of distributing a loan into a sequence of set payments across a duration, encompassing both the principal amount and interest.

End-of-Year Payments

Financial disbursements made at the conclusion of a calendar or fiscal year, often related to dividends, bonuses, or debt settlements.