A Turbine Blade Rotates with Angular Velocity ω(T) = 2

question 14

Multiple Choice

A turbine blade rotates with angular velocity ω(t) = 2.00 rad/s- 2.1.00 rad/s3 t². What is the angular acceleration of the blade at t = 9.1 s?

• A) -38.2 rad/s²
• B) -19.1 rad/s²
• C) -86.0 rad/s²
• D) -36.2 rad/s²
• E) -172 rad/s²

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