It Is Possible Using the Analogies Between Linear Motion and Rotational

question 53

Multiple Choice

It is possible using the analogies between linear motion and rotational motion to write an expression for rotational kinetic energy. The formula for rotational kinetic energy (assuming $\tau$ is torque, $\alpha$ is angular acceleration, I is rotational inertia, and $\omega$ is angular velocity) is

• A) ½ \( \tau \) \(\alpha\)².
• B) ½ I \(\alpha\)².
• C) ½ I \( \omega \)².
• D) ½ \( \tau \) \( \omega \)².

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