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It Is Possible Using the Analogies Between Linear Motion and Rotational

Question 37

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 τ \tau is torque, α\alpha is angular acceleration, I is rotational inertia, and ω \omega is angular velocity) is


A) ½ τ \tau α\alpha 2.
B) ½ I α\alpha 2.
C) ½ I ω \omega 2.
D) ½ τ \tau ω \omega 2.
 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 <sup>2</sup>. B)  ½ I  \alpha <sup>2</sup>. C)  ½ I   \omega  <sup>2</sup>. D)  ½   \tau     \omega  <sup>2</sup>.

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